mdoc(7) police: removed HISTORY info from the .Os call.

171 files changed, 171 insertions, 171 deletions

diff --git a/share/man/man4/adv.4 b/share/man/man4/adv.4
index 472bce8..04f6a23 100644
--- a/share/man/man4/adv.4
+++ b/share/man/man4/adv.4
@@ -25,7 +25,7 @@
 .\"
 .Dd February 13, 2000
 .Dt ADV 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm adv
 .Nd Advansys ISA/VL/EISA/PCI 8bit SCSI Host adapter driver
diff --git a/share/man/man4/adw.4 b/share/man/man4/adw.4
index ad7cbba..8611919 100644
--- a/share/man/man4/adw.4
+++ b/share/man/man4/adw.4
@@ -25,7 +25,7 @@
 .\"
 .Dd February 13, 2000
 .Dt ADW 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm adw
 .Nd Advansys PCI 16bit SCSI Host adapter driver
diff --git a/share/man/man4/aha.4 b/share/man/man4/aha.4
index 7e5dc45..d0a47a6 100644
--- a/share/man/man4/aha.4
+++ b/share/man/man4/aha.4
@@ -28,7 +28,7 @@
 .\"
 .Dd October 15, 1998
 .Dt AHA 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm aha
 .Nd Adaptec SCSI host adapter driver
diff --git a/share/man/man4/ahb.4 b/share/man/man4/ahb.4
index b98f939..bc3c9c5 100644
--- a/share/man/man4/ahb.4
+++ b/share/man/man4/ahb.4
@@ -28,7 +28,7 @@
 .\"
 .Dd October 15, 1998
 .Dt AHB 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ahb
 .Nd Adaptec EISA SCSI host adapter driver
diff --git a/share/man/man4/ahc.4 b/share/man/man4/ahc.4
index 300b760..649291a 100644
--- a/share/man/man4/ahc.4
+++ b/share/man/man4/ahc.4
@@ -28,7 +28,7 @@
 .\"
 .Dd February 13, 2000
 .Dt AHC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ahc
 .Nd Adaptec VL/EISA/PCI SCSI host adapter driver
diff --git a/share/man/man4/amd.4 b/share/man/man4/amd.4
index c0bf337..43da3d2 100644
--- a/share/man/man4/amd.4
+++ b/share/man/man4/amd.4
@@ -25,7 +25,7 @@
 .\"
 .Dd December 13, 1999
 .Dt AMD 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm amd
 .Nd amd53c974 PCI SCSI driver
diff --git a/share/man/man4/an.4 b/share/man/man4/an.4
index 93c8463..4553ceb 100644
--- a/share/man/man4/an.4
+++ b/share/man/man4/an.4
@@ -32,7 +32,7 @@
 .\"
 .Dd September 10, 1999
 .Dt AN 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm an
 .Nd "Aironet Communications 4500/4800 wireless network adapter driver"
diff --git a/share/man/man4/asr.4 b/share/man/man4/asr.4
index 7f5e11b..258b97f 100644
--- a/share/man/man4/asr.4
+++ b/share/man/man4/asr.4
@@ -7,7 +7,7 @@
 .\"
 .Dd October 27, 2000
 .Dt ASR 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm asr
 .Nd driver for Adaptec I2O based SCSI/ATA host bus adapters
diff --git a/share/man/man4/ata.4 b/share/man/man4/ata.4
index 7173deb..e173eed 100644
--- a/share/man/man4/ata.4
+++ b/share/man/man4/ata.4
@@ -28,7 +28,7 @@
 .\"
 .Dd January 27, 2000
 .Dt ATA 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ata ,
 .Nm acd ,
diff --git a/share/man/man4/atkbd.4 b/share/man/man4/atkbd.4
index 5f88d58..9bf5f0b 100644
--- a/share/man/man4/atkbd.4
+++ b/share/man/man4/atkbd.4
@@ -28,7 +28,7 @@
 .\"
 .Dd May 21, 1999
 .Dt ATKBD 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm atkbd
 .Nd the AT keyboard interface
diff --git a/share/man/man4/atkbdc.4 b/share/man/man4/atkbdc.4
index ee29355..b3ca8cd 100644
--- a/share/man/man4/atkbdc.4
+++ b/share/man/man4/atkbdc.4
@@ -28,7 +28,7 @@
 .\"
 .Dd February 9, 1999
 .Dt ATKBDC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm atkbdc
 .Nd the AT keyboard controller interface
diff --git a/share/man/man4/aue.4 b/share/man/man4/aue.4
index 886eacb..3f34871 100644
--- a/share/man/man4/aue.4
+++ b/share/man/man4/aue.4
@@ -32,7 +32,7 @@
 .\"
 .Dd December 25, 1999
 .Dt AUE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm aue
 .Nd ADMtek AN986 Pegasus USB Ethernet driver
diff --git a/share/man/man4/bktr.4 b/share/man/man4/bktr.4
index b3a686d..9825f92 100644
--- a/share/man/man4/bktr.4
+++ b/share/man/man4/bktr.4
@@ -3,7 +3,7 @@
 .\"
 .Dd January 28, 1998
 .Dt BKTR 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm brooktree
 .Nd video capture driver
diff --git a/share/man/man4/blackhole.4 b/share/man/man4/blackhole.4
index c57dad4..9e1b0c8 100644
--- a/share/man/man4/blackhole.4
+++ b/share/man/man4/blackhole.4
@@ -14,7 +14,7 @@
 .\" $FreeBSD$
 .Dd August 17, 1999
 .Dt BLACKHOLE 4
-.Os FreeBSD 
+.Os
 .Sh NAME
 .Nm blackhole 
 .Nd a
diff --git a/share/man/man4/bpf.4 b/share/man/man4/bpf.4
index 21057fd..6af0be3 100644
--- a/share/man/man4/bpf.4
+++ b/share/man/man4/bpf.4
@@ -24,7 +24,7 @@
 .\"
 .Dd January 16, 1996
 .Dt BPF 4
-.Os BSD 4.4
+.Os
 .Sh NAME
 .Nm bpf
 .Nd Berkeley Packet Filter
diff --git a/share/man/man4/bt.4 b/share/man/man4/bt.4
index 5ef0632..d45d2ff 100644
--- a/share/man/man4/bt.4
+++ b/share/man/man4/bt.4
@@ -28,7 +28,7 @@
 .\"
 .Dd October 16, 1998
 .Dt BT 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm bt
 .Nd Buslogic/Mylex MultiMaster SCSI host adapter driver
diff --git a/share/man/man4/ccd.4 b/share/man/man4/ccd.4
index 892d4ad..020feea 100644
--- a/share/man/man4/ccd.4
+++ b/share/man/man4/ccd.4
@@ -36,7 +36,7 @@
 .\"
 .Dd August 9, 1995
 .Dt CCD 4
-.Os NetBSD
+.Os
 .Sh NAME
 .Nm ccd
 .Nd Concatenated Disk driver
diff --git a/share/man/man4/cd.4 b/share/man/man4/cd.4
index 540587b..1ff58cc 100644
--- a/share/man/man4/cd.4
+++ b/share/man/man4/cd.4
@@ -27,7 +27,7 @@
 .\"
 .Dd October 10, 1998
 .Dt CD 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm cd
 .Nd SCSI CD-ROM driver
diff --git a/share/man/man4/ch.4 b/share/man/man4/ch.4
index 403f3fd..59fc1fa 100644
--- a/share/man/man4/ch.4
+++ b/share/man/man4/ch.4
@@ -26,7 +26,7 @@
 .\"
 .Dd May 14, 1998
 .Dt CH 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ch
 .Nd SCSI media-changer (juke box) driver
diff --git a/share/man/man4/csa.4 b/share/man/man4/csa.4
index e7eb400..9090a25 100644
--- a/share/man/man4/csa.4
+++ b/share/man/man4/csa.4
@@ -27,7 +27,7 @@
 .\"
 .Dd December 18, 1999
 .Dt CSA 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm csa
 .Nd Crystal Semiconductor CS461x/462x/428x PCI bridge device driver
diff --git a/share/man/man4/cue.4 b/share/man/man4/cue.4
index 77caf9d..fea2e5d 100644
--- a/share/man/man4/cue.4
+++ b/share/man/man4/cue.4
@@ -32,7 +32,7 @@
 .\"
 .Dd January 13, 2000
 .Dt CUE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm cue
 .Nd CATC USB-EL1210A USB Ethernet driver
diff --git a/share/man/man4/cy.4 b/share/man/man4/cy.4
index 5d5229d..f10482e 100644
--- a/share/man/man4/cy.4
+++ b/share/man/man4/cy.4
@@ -39,7 +39,7 @@
 .\"
 .Dd June 14, 1999
 .Dt CY 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm cy
 .Nd Cyclades Cyclom-Y serial driver
diff --git a/share/man/man4/da.4 b/share/man/man4/da.4
index 02c46b5..a175620 100644
--- a/share/man/man4/da.4
+++ b/share/man/man4/da.4
@@ -27,7 +27,7 @@
 .\"
 .Dd October 15, 1998
 .Dt DA 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm da
 .Nd SCSI Direct Access device driver
diff --git a/share/man/man4/dc.4 b/share/man/man4/dc.4
index accaf7d..24892cc 100644
--- a/share/man/man4/dc.4
+++ b/share/man/man4/dc.4
@@ -32,7 +32,7 @@
 .\"
 .Dd November 20, 1999
 .Dt DC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm dc
 .Nd "DEC/Intel 21143 and clone 10/100 ethernet driver"
diff --git a/share/man/man4/ddb.4 b/share/man/man4/ddb.4
index 97be295..37dd7e5 100644
--- a/share/man/man4/ddb.4
+++ b/share/man/man4/ddb.4
@@ -60,7 +60,7 @@
 .\" $FreeBSD$
 .Dd January 16, 1996
 .Dt DDB 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ddb
 .Nd interactive kernel debugger
diff --git a/share/man/man4/de.4 b/share/man/man4/de.4
index 99df634..7b62b7f 100644
--- a/share/man/man4/de.4
+++ b/share/man/man4/de.4
@@ -27,7 +27,7 @@
 .\"
 .Dd January 19, 1997
 .Dt DE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm de
 .Nd DEC DC21x4x Ethernet device driver
diff --git a/share/man/man4/divert.4 b/share/man/man4/divert.4
index 19fe95b..5941318 100644
--- a/share/man/man4/divert.4
+++ b/share/man/man4/divert.4
@@ -2,7 +2,7 @@
 .\"
 .Dd June 18, 1996
 .Dt DIVERT 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm divert
 .Nd kernel packet diversion mechanism
diff --git a/share/man/man4/dpt.4 b/share/man/man4/dpt.4
index 66b2b3c..fa0afbf 100644
--- a/share/man/man4/dpt.4
+++ b/share/man/man4/dpt.4
@@ -25,7 +25,7 @@
 .\"
 .Dd October 16, 1998
 .Dt DPT 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm dpt
 .Nd DPT RAID Controller SCSI driver
diff --git a/share/man/man4/ed.4 b/share/man/man4/ed.4
index 6916d0d..82658e3 100644
--- a/share/man/man4/ed.4
+++ b/share/man/man4/ed.4
@@ -32,7 +32,7 @@
 .\"
 .Dd October 28, 1995
 .Dt ED 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ed
 .Nd ethernet device driver
diff --git a/share/man/man4/fdc.4 b/share/man/man4/fdc.4
index 7a51d87..e61a04f 100644
--- a/share/man/man4/fdc.4
+++ b/share/man/man4/fdc.4
@@ -28,7 +28,7 @@
 .\"
 .Dd August 31, 1994
 .Dt FDC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm fdc
 .Nd PC architecture floppy disk controller driver
diff --git a/share/man/man4/fpa.4 b/share/man/man4/fpa.4
index ab62637..8b45a91 100644
--- a/share/man/man4/fpa.4
+++ b/share/man/man4/fpa.4
@@ -6,7 +6,7 @@
 .\"
 .Dd March 13, 1995
 .Dt FPA 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm fpa ,
 .Nm fea
diff --git a/share/man/man4/fxp.4 b/share/man/man4/fxp.4
index 9b1021c..9502319 100644
--- a/share/man/man4/fxp.4
+++ b/share/man/man4/fxp.4
@@ -27,7 +27,7 @@
 .\"
 .Dd January 19, 1997
 .Dt FXP 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm fxp
 .Nd Intel EtherExpress Pro/100B ethernet device driver
diff --git a/share/man/man4/gusc.4 b/share/man/man4/gusc.4
index 49ef399..5a788a2 100644
--- a/share/man/man4/gusc.4
+++ b/share/man/man4/gusc.4
@@ -27,7 +27,7 @@
 .\"
 .Dd December 18, 1999
 .Dt GUSC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm gusc
 .Nd Gravis UltraSound ISA bridge device driver
diff --git a/share/man/man4/ichsmb.4 b/share/man/man4/ichsmb.4
index 13b4306..b9f3591 100644
--- a/share/man/man4/ichsmb.4
+++ b/share/man/man4/ichsmb.4
@@ -36,7 +36,7 @@
 .\"
 .Dd October 5, 2000
 .Dt ICHSMB 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ichsmb
 .Nd Intel ICH SMBus controller driver
diff --git a/share/man/man4/icmp.4 b/share/man/man4/icmp.4
index c0c01d3..8f87f45 100644
--- a/share/man/man4/icmp.4
+++ b/share/man/man4/icmp.4
@@ -34,7 +34,7 @@
 .\"
 .Dd June 5, 1993
 .Dt ICMP 4
-.Os BSD 4.3
+.Os
 .Sh NAME
 .Nm icmp
 .Nd Internet Control Message Protocol
diff --git a/share/man/man4/icmp6.4 b/share/man/man4/icmp6.4
index 182b302..b7a5a83 100644
--- a/share/man/man4/icmp6.4
+++ b/share/man/man4/icmp6.4
@@ -61,7 +61,7 @@
 .\"
 .Dd March 13, 2000
 .Dt ICMP6 4
-.Os KAME
+.Os
 .\"
 .Sh NAME
 .Nm icmp6
diff --git a/share/man/man4/ifmib.4 b/share/man/man4/ifmib.4
index deb56cd..5288a76 100644
--- a/share/man/man4/ifmib.4
+++ b/share/man/man4/ifmib.4
@@ -29,7 +29,7 @@
 .\"
 .Dd November 15, 1996
 .Dt IFMIB 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ifmib
 .Nd Management Information Base for network interfaces
diff --git a/share/man/man4/iic.4 b/share/man/man4/iic.4
index f193b46..02b7dd7 100644
--- a/share/man/man4/iic.4
+++ b/share/man/man4/iic.4
@@ -26,7 +26,7 @@
 .\"
 .Dd October 25, 1998
 .Dt IIC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm iic
 .Nd I2C generic i/o device driver
diff --git a/share/man/man4/iicbb.4 b/share/man/man4/iicbb.4
index f21d9a6..e048c5d 100644
--- a/share/man/man4/iicbb.4
+++ b/share/man/man4/iicbb.4
@@ -26,7 +26,7 @@
 .\"
 .Dd October 25, 1998
 .Dt IICBB 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm iicbb
 .Nd I2C generic bit-banging driver
diff --git a/share/man/man4/iicbus.4 b/share/man/man4/iicbus.4
index af67cc5..17d5c70 100644
--- a/share/man/man4/iicbus.4
+++ b/share/man/man4/iicbus.4
@@ -26,7 +26,7 @@
 .\"
 .Dd August 6, 1998
 .Dt IICBUS 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm iicbus
 .Nd I2C bus system
diff --git a/share/man/man4/iicsmb.4 b/share/man/man4/iicsmb.4
index e64d6f2..4fdf6d4 100644
--- a/share/man/man4/iicsmb.4
+++ b/share/man/man4/iicsmb.4
@@ -26,7 +26,7 @@
 .\"
 .Dd August 10, 1998
 .Dt IICSMB 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm iicsmb
 .Nd I2C to SMB bridge
diff --git a/share/man/man4/inet.4 b/share/man/man4/inet.4
index 13dae8f..48dedc3 100644
--- a/share/man/man4/inet.4
+++ b/share/man/man4/inet.4
@@ -34,7 +34,7 @@
 .\"
 .Dd February 14, 1995
 .Dt INET 4
-.Os BSD 4.2
+.Os
 .Sh NAME
 .Nm inet
 .Nd Internet protocol family
diff --git a/share/man/man4/intpm.4 b/share/man/man4/intpm.4
index ce0de67..1845872 100644
--- a/share/man/man4/intpm.4
+++ b/share/man/man4/intpm.4
@@ -26,7 +26,7 @@
 .\"
 .Dd January 8, 1999
 .Dt INTPM 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm intpm
 .Nd Intel PIIX4 Power Management controller driver
diff --git a/share/man/man4/intro.4 b/share/man/man4/intro.4
index 84f6146..bdf2a23 100644
--- a/share/man/man4/intro.4
+++ b/share/man/man4/intro.4
@@ -27,7 +27,7 @@
 .\"
 .Dd January 20, 1996
 .Dt INTRO 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm intro
 .Nd introduction to devices and device drivers
diff --git a/share/man/man4/ip6.4 b/share/man/man4/ip6.4
index ffd705c..3faf320 100644
--- a/share/man/man4/ip6.4
+++ b/share/man/man4/ip6.4
@@ -62,7 +62,7 @@
 .\"
 .Dd March 13, 2000
 .Dt IP6 4
-.Os KAME
+.Os
 .\"
 .Sh NAME
 .Nm ip6
diff --git a/share/man/man4/joy.4 b/share/man/man4/joy.4
index eac1af4..954e0e0 100644
--- a/share/man/man4/joy.4
+++ b/share/man/man4/joy.4
@@ -3,7 +3,7 @@
 .\"
 .Dd January 23, 1995
 .Dt JOY 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm joy
 .Nd joystick device driver
diff --git a/share/man/man4/keyboard.4 b/share/man/man4/keyboard.4
index ad4f944..fa7cff9 100644
--- a/share/man/man4/keyboard.4
+++ b/share/man/man4/keyboard.4
@@ -3,7 +3,7 @@
 .\"
 .Dd January 8, 1995
 .Dt KEYBOARD 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm keyboard
 .Nd pc keyboard interface
diff --git a/share/man/man4/kld.4 b/share/man/man4/kld.4
index 7cd8aa4..f583419 100644
--- a/share/man/man4/kld.4
+++ b/share/man/man4/kld.4
@@ -27,7 +27,7 @@
 .\"
 .Dd November 8, 1998
 .Dt KLD 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm kld
 .Nd dynamic kernel linker facility
diff --git a/share/man/man4/kue.4 b/share/man/man4/kue.4
index 3a30c64..45c1204 100644
--- a/share/man/man4/kue.4
+++ b/share/man/man4/kue.4
@@ -32,7 +32,7 @@
 .\"
 .Dd January 4, 2000
 .Dt KUE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm kue
 .Nd Kawasaki LSI KL5KUSB101B USB Ethernet driver
diff --git a/share/man/man4/lo.4 b/share/man/man4/lo.4
index 48def16..86dd47e 100644
--- a/share/man/man4/lo.4
+++ b/share/man/man4/lo.4
@@ -34,7 +34,7 @@
 .\"
 .Dd June 5, 1993
 .Dt LO 4
-.Os BSD 4.2
+.Os
 .Sh NAME
 .Nm lo
 .Nd software loopback network interface
diff --git a/share/man/man4/lpbb.4 b/share/man/man4/lpbb.4
index 20772ba..2f20e29 100644
--- a/share/man/man4/lpbb.4
+++ b/share/man/man4/lpbb.4
@@ -26,7 +26,7 @@
 .\"
 .Dd October 25, 1998
 .Dt LPBB 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm lpbb
 .Nd parallel port I2C bit-banging interface
diff --git a/share/man/man4/lpt.4 b/share/man/man4/lpt.4
index a491dc7..697da66 100644
--- a/share/man/man4/lpt.4
+++ b/share/man/man4/lpt.4
@@ -29,7 +29,7 @@
 .\"
 .Dd February 14, 1999
 .Dt LPT 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm lpt
 .Nd generic printer device driver
diff --git a/share/man/man4/man4.i386/alpm.4 b/share/man/man4/man4.i386/alpm.4
index da1a6ea..9c54d13 100644
--- a/share/man/man4/man4.i386/alpm.4
+++ b/share/man/man4/man4.i386/alpm.4
@@ -26,7 +26,7 @@
 .\"
 .Dd February 13, 1999
 .Dt ALPM 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm alpm
 .Nd Acer Aladdin 15x3 Power Management controller driver
diff --git a/share/man/man4/man4.i386/ar.4 b/share/man/man4/man4.i386/ar.4
index 2a27081..f2e9c38 100644
--- a/share/man/man4/man4.i386/ar.4
+++ b/share/man/man4/man4.i386/ar.4
@@ -29,7 +29,7 @@
 .\"
 .Dd November 19, 1995
 .Dt AR 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ar
 .Nd synchronous Digi/Arnet device driver
diff --git a/share/man/man4/man4.i386/asc.4 b/share/man/man4/man4.i386/asc.4
index 18bfd37..fdfa15a 100644
--- a/share/man/man4/man4.i386/asc.4
+++ b/share/man/man4/man4.i386/asc.4
@@ -32,7 +32,7 @@
 .\" $FreeBSD$
 .Dd January 19, 1995
 .Dt ASC 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm asc
 .Nd device driver for a GI1904-based hand scanner
diff --git a/share/man/man4/man4.i386/asr.4 b/share/man/man4/man4.i386/asr.4
index 7f5e11b..258b97f 100644
--- a/share/man/man4/man4.i386/asr.4
+++ b/share/man/man4/man4.i386/asr.4
@@ -7,7 +7,7 @@
 .\"
 .Dd October 27, 2000
 .Dt ASR 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm asr
 .Nd driver for Adaptec I2O based SCSI/ATA host bus adapters
diff --git a/share/man/man4/man4.i386/cs.4 b/share/man/man4/man4.i386/cs.4
index 1d2ac4c..6604175 100644
--- a/share/man/man4/man4.i386/cs.4
+++ b/share/man/man4/man4.i386/cs.4
@@ -27,7 +27,7 @@
 .\"
 .Dd July 20, 1998
 .Dt CS 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm cs
 .Nd ethernet device driver
diff --git a/share/man/man4/man4.i386/cx.4 b/share/man/man4/man4.i386/cx.4
index a804230..ea4def5 100644
--- a/share/man/man4/man4.i386/cx.4
+++ b/share/man/man4/man4.i386/cx.4
@@ -3,7 +3,7 @@
 .\"
 .Dd December 12, 1994
 .Dt CX 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm cx
 .Nd asynchronous/synchronous Cronyx-Sigma adapter driver
diff --git a/share/man/man4/man4.i386/cy.4 b/share/man/man4/man4.i386/cy.4
index 5d5229d..f10482e 100644
--- a/share/man/man4/man4.i386/cy.4
+++ b/share/man/man4/man4.i386/cy.4
@@ -39,7 +39,7 @@
 .\"
 .Dd June 14, 1999
 .Dt CY 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm cy
 .Nd Cyclades Cyclom-Y serial driver
diff --git a/share/man/man4/man4.i386/dgb.4 b/share/man/man4/man4.i386/dgb.4
index 3c3eac4..c62b40c 100644
--- a/share/man/man4/man4.i386/dgb.4
+++ b/share/man/man4/man4.i386/dgb.4
@@ -39,7 +39,7 @@
 .\"
 .Dd October 13, 1995
 .Dt DGB 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm dgb
 .Nd DigiBoard intelligent serial cards driver
diff --git a/share/man/man4/man4.i386/el.4 b/share/man/man4/man4.i386/el.4
index 10b1cbc..092f944 100644
--- a/share/man/man4/man4.i386/el.4
+++ b/share/man/man4/man4.i386/el.4
@@ -25,7 +25,7 @@
 .\"
 .Dd July 10, 1995
 .Dt EL 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm el
 .Nd Ethernet driver for 3Com Etherlink 3C501 device driver
diff --git a/share/man/man4/man4.i386/ex.4 b/share/man/man4/man4.i386/ex.4
index 4af46f9..dda2c7f 100644
--- a/share/man/man4/man4.i386/ex.4
+++ b/share/man/man4/man4.i386/ex.4
@@ -27,7 +27,7 @@
 .\"
 .Dd January 19, 1997
 .Dt EX 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ex
 .Nd "Ethernet device driver for the Intel EtherExpress Pro/10 and Pro/10+"
diff --git a/share/man/man4/man4.i386/fe.4 b/share/man/man4/man4.i386/fe.4
index 0bcc72d..de674d4 100644
--- a/share/man/man4/man4.i386/fe.4
+++ b/share/man/man4/man4.i386/fe.4
@@ -24,7 +24,7 @@
 .\" $FreeBSD$
 .Dd March 3, 1996
 .Dt FE 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm fe
 .Nd Fujitsu MB86960A/MB86965A based Ethernet adapters
diff --git a/share/man/man4/man4.i386/gsc.4 b/share/man/man4/man4.i386/gsc.4
index a4360fe..c73188a 100644
--- a/share/man/man4/man4.i386/gsc.4
+++ b/share/man/man4/man4.i386/gsc.4
@@ -31,7 +31,7 @@
 .\" $FreeBSD$
 .\"
 .Dd January 9, 1995
-.Os FreeBSD
+.Os
 .Dt GSC 4 i386
 .Sh NAME
 .Nm gsc
diff --git a/share/man/man4/man4.i386/labpc.4 b/share/man/man4/man4.i386/labpc.4
index 198011e..fad21e1 100644
--- a/share/man/man4/man4.i386/labpc.4
+++ b/share/man/man4/man4.i386/labpc.4
@@ -31,7 +31,7 @@
 .\"
 .Dd April 26, 1995
 .Dt LABPC 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm labpc
 .Nd National Instruments LABPC and LABPC+ driver
diff --git a/share/man/man4/man4.i386/le.4 b/share/man/man4/man4.i386/le.4
index b2e0afe..5b8a1f5 100644
--- a/share/man/man4/man4.i386/le.4
+++ b/share/man/man4/man4.i386/le.4
@@ -27,7 +27,7 @@
 .\"
 .Dd January 19, 1997
 .Dt LE 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm le
 .Nd DEC EtherWORKS II/III Ethernet device driver
diff --git a/share/man/man4/man4.i386/lnc.4 b/share/man/man4/man4.i386/lnc.4
index ffef4c1..3324032 100644
--- a/share/man/man4/man4.i386/lnc.4
+++ b/share/man/man4/man4.i386/lnc.4
@@ -27,7 +27,7 @@
 .\"
 .Dd January 19, 1997
 .Dt LNC 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm lnc
 .Nd AMD Lance/PCnet Ethernet device driver
diff --git a/share/man/man4/man4.i386/matcd.4 b/share/man/man4/man4.i386/matcd.4
index 797b906..530c4eb 100644
--- a/share/man/man4/man4.i386/matcd.4
+++ b/share/man/man4/man4.i386/matcd.4
@@ -86,7 +86,7 @@
 .Dd September 24, 1995
 .Dt MATCD 4 i386
 .\"Synchronized to Version 1(25) of matcd.c
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm matcd
 .Nd Matsushita (Panasonic) CD-ROM driver
diff --git a/share/man/man4/man4.i386/mcd.4 b/share/man/man4/man4.i386/mcd.4
index d6a0fef..3186bfc 100644
--- a/share/man/man4/man4.i386/mcd.4
+++ b/share/man/man4/man4.i386/mcd.4
@@ -28,7 +28,7 @@
 .\"
 .Dd December 8, 1994
 .Dt MCD 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm mcd
 .Nd Mitsumi CD-ROM driver
diff --git a/share/man/man4/man4.i386/meteor.4 b/share/man/man4/man4.i386/meteor.4
index 8f0df30..b4d2ed8 100644
--- a/share/man/man4/man4.i386/meteor.4
+++ b/share/man/man4/man4.i386/meteor.4
@@ -3,7 +3,7 @@
 .\"
 .Dd August 15, 1995
 .Dt METEOR 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm meteor
 .Nd "video capture driver"
diff --git a/share/man/man4/man4.i386/mse.4 b/share/man/man4/man4.i386/mse.4
index 1c36340..bde26bb 100644
--- a/share/man/man4/man4.i386/mse.4
+++ b/share/man/man4/man4.i386/mse.4
@@ -14,7 +14,7 @@
 .\"
 .Dd December 3, 1997
 .Dt MSE 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm mse
 .Nd bus and InPort mice driver
diff --git a/share/man/man4/man4.i386/npx.4 b/share/man/man4/man4.i386/npx.4
index 34a8d13..e2504ae 100644
--- a/share/man/man4/man4.i386/npx.4
+++ b/share/man/man4/man4.i386/npx.4
@@ -32,7 +32,7 @@
 .\"
 .Dd August 28, 1993
 .Dt NPX 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm npx
 .Nd Numeric Processing Extension coprocessor and emulator
diff --git a/share/man/man4/man4.i386/pcf.4 b/share/man/man4/man4.i386/pcf.4
index 3fffcfe..b1d33e2 100644
--- a/share/man/man4/man4.i386/pcf.4
+++ b/share/man/man4/man4.i386/pcf.4
@@ -26,7 +26,7 @@
 .\"
 .Dd August 6, 1998
 .Dt PCF 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm pcf
 .Nd Philips I2C bus controller
diff --git a/share/man/man4/man4.i386/perfmon.4 b/share/man/man4/man4.i386/perfmon.4
index 2df7739..c1fccbd 100644
--- a/share/man/man4/man4.i386/perfmon.4
+++ b/share/man/man4/man4.i386/perfmon.4
@@ -29,7 +29,7 @@
 .\" $FreeBSD$
 .Dd March 26, 1996
 .Dt PERFMON 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm perfmon
 .Nd CPU performance-monitoring interface
diff --git a/share/man/man4/man4.i386/pnp.4 b/share/man/man4/man4.i386/pnp.4
index 7050efa..8e32dfa 100644
--- a/share/man/man4/man4.i386/pnp.4
+++ b/share/man/man4/man4.i386/pnp.4
@@ -32,7 +32,7 @@
 .\"
 .Dd September 7, 1997
 .Dt PNP 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm pnp
 .Nd support for PnP devices
diff --git a/share/man/man4/man4.i386/ray.4 b/share/man/man4/man4.i386/ray.4
index 474ceb2..4994a4f 100644
--- a/share/man/man4/man4.i386/ray.4
+++ b/share/man/man4/man4.i386/ray.4
@@ -32,7 +32,7 @@
 .\"
 .Dd March 21, 2000
 .Dt RAY 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ray
 .Nd Raytheon Raylink/Webgear Aviator PCCard driver
diff --git a/share/man/man4/man4.i386/sb.4 b/share/man/man4/man4.i386/sb.4
index b075962..8fc9a4b 100644
--- a/share/man/man4/man4.i386/sb.4
+++ b/share/man/man4/man4.i386/sb.4
@@ -14,7 +14,7 @@
 .\"
 .Dd August 9, 1997
 .Dt SB 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sb
 .Nd Creative Labs Sound Blaster and compatible device driver
diff --git a/share/man/man4/man4.i386/scd.4 b/share/man/man4/man4.i386/scd.4
index 43cd648..3f65da4 100644
--- a/share/man/man4/man4.i386/scd.4
+++ b/share/man/man4/man4.i386/scd.4
@@ -28,7 +28,7 @@
 .\"
 .Dd January 1, 1995
 .Dt SCD 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm scd
 .Nd Sony CDU31/33 CD-ROM driver
diff --git a/share/man/man4/man4.i386/spkr.4 b/share/man/man4/man4.i386/spkr.4
index 07a4d7b..b2775fd 100644
--- a/share/man/man4/man4.i386/spkr.4
+++ b/share/man/man4/man4.i386/spkr.4
@@ -3,7 +3,7 @@
 .\"
 .Dd November 7, 1993
 .Dt SPKR 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm speaker ,
 .Nm spkr
diff --git a/share/man/man4/man4.i386/tw.4 b/share/man/man4/man4.i386/tw.4
index f00afdc..4582ac1 100644
--- a/share/man/man4/man4.i386/tw.4
+++ b/share/man/man4/man4.i386/tw.4
@@ -31,7 +31,7 @@
 .\"
 .Dd October 30, 1993
 .Dt TW 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm tw
 .Nd TW-523 X-10 device driver
diff --git a/share/man/man4/man4.i386/tx.4 b/share/man/man4/man4.i386/tx.4
index 7c15c94..8a37970 100644
--- a/share/man/man4/man4.i386/tx.4
+++ b/share/man/man4/man4.i386/tx.4
@@ -27,7 +27,7 @@
 .\"
 .Dd February 8, 2001
 .Dt TX 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm tx
 .Nd "SMC 83c17x Fast Ethernet device driver"
diff --git a/share/man/man4/man4.i386/wd.4 b/share/man/man4/man4.i386/wd.4
index 59c9f84..8d67a12 100644
--- a/share/man/man4/man4.i386/wd.4
+++ b/share/man/man4/man4.i386/wd.4
@@ -28,7 +28,7 @@
 .\"
 .Dd August 31, 1994
 .Dt WD 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm wd
 .Nd generic WD100x/IDE disk controller driver
diff --git a/share/man/man4/man4.i386/wl.4 b/share/man/man4/man4.i386/wl.4
index 8564037..982084b 100644
--- a/share/man/man4/man4.i386/wl.4
+++ b/share/man/man4/man4.i386/wl.4
@@ -31,7 +31,7 @@
 .\" $FreeBSD$
 .Dd July 7, 1997
 .Dt WL 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm wl
 .Nd T1 speed ISA/radio lan card
diff --git a/share/man/man4/mouse.4 b/share/man/man4/mouse.4
index 82d2861..73c0835 100644
--- a/share/man/man4/mouse.4
+++ b/share/man/man4/mouse.4
@@ -28,7 +28,7 @@
 .\"
 .Dd December 3, 1997
 .Dt MOUSE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm mouse
 .Nd mouse and pointing device drivers
diff --git a/share/man/man4/mtio.4 b/share/man/man4/mtio.4
index acd5abd..44b0707 100644
--- a/share/man/man4/mtio.4
+++ b/share/man/man4/mtio.4
@@ -37,7 +37,7 @@
 .\"
 .Dd February 11, 1996
 .Dt MTIO 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm mtio
 .Nd FreeBSD magtape interface
diff --git a/share/man/man4/netgraph.4 b/share/man/man4/netgraph.4
index 1b2149c..a816fd5 100644
--- a/share/man/man4/netgraph.4
+++ b/share/man/man4/netgraph.4
@@ -38,7 +38,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NETGRAPH 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm netgraph
 .Nd graph based kernel networking subsystem
diff --git a/share/man/man4/netintro.4 b/share/man/man4/netintro.4
index 854af85..f5b12d5 100644
--- a/share/man/man4/netintro.4
+++ b/share/man/man4/netintro.4
@@ -34,7 +34,7 @@
 .\"
 .Dd November 30, 1993
 .Dt NETINTRO 4
-.Os BSD 4.2
+.Os
 .Sh NAME
 .Nm networking
 .Nd introduction to networking facilities
diff --git a/share/man/man4/ng_UI.4 b/share/man/man4/ng_UI.4
index 30b258b..4a52287 100644
--- a/share/man/man4/ng_UI.4
+++ b/share/man/man4/ng_UI.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_UI 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_UI
 .Nd UI netgraph node type
diff --git a/share/man/man4/ng_async.4 b/share/man/man4/ng_async.4
index 70747f5e..647caeb 100644
--- a/share/man/man4/ng_async.4
+++ b/share/man/man4/ng_async.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_ASYNC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_async
 .Nd asynchronous framing netgraph node type
diff --git a/share/man/man4/ng_bpf.4 b/share/man/man4/ng_bpf.4
index bc898eb..f6b9f1e 100644
--- a/share/man/man4/ng_bpf.4
+++ b/share/man/man4/ng_bpf.4
@@ -37,7 +37,7 @@
 .\"
 .Dd December 2, 1999
 .Dt NG_BPF 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_bpf
 .Nd Berkeley packet filter netgraph node type
diff --git a/share/man/man4/ng_bridge.4 b/share/man/man4/ng_bridge.4
index 1944cc9..02d136b 100644
--- a/share/man/man4/ng_bridge.4
+++ b/share/man/man4/ng_bridge.4
@@ -36,7 +36,7 @@
 .\"
 .Dd August 31, 2000
 .Dt NG_BRIDGE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_bridge
 .Nd Ethernet bridging netgraph node type
diff --git a/share/man/man4/ng_cisco.4 b/share/man/man4/ng_cisco.4
index 66e7148..1a8abb8 100644
--- a/share/man/man4/ng_cisco.4
+++ b/share/man/man4/ng_cisco.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_CISCO 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_cisco
 .Nd Cisco HDLC protocol netgraph node type
diff --git a/share/man/man4/ng_echo.4 b/share/man/man4/ng_echo.4
index f20f88f..2e08afa 100644
--- a/share/man/man4/ng_echo.4
+++ b/share/man/man4/ng_echo.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_ECHO 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_echo
 .Nd netgraph echo node type
diff --git a/share/man/man4/ng_ether.4 b/share/man/man4/ng_ether.4
index 344b482..07d445a 100644
--- a/share/man/man4/ng_ether.4
+++ b/share/man/man4/ng_ether.4
@@ -36,7 +36,7 @@
 .\"
 .Dd June 26, 2000
 .Dt NG_ETHER 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_ether
 .Nd Ethernet netgraph node type
diff --git a/share/man/man4/ng_frame_relay.4 b/share/man/man4/ng_frame_relay.4
index 52c760b..b7d5ecd 100644
--- a/share/man/man4/ng_frame_relay.4
+++ b/share/man/man4/ng_frame_relay.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_FRAME_RELAY 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_frame_relay
 .Nd frame relay netgraph node type
diff --git a/share/man/man4/ng_hole.4 b/share/man/man4/ng_hole.4
index d6901e4..e4d19e6 100644
--- a/share/man/man4/ng_hole.4
+++ b/share/man/man4/ng_hole.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_HOLE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_hole
 .Nd netgraph discard node type
diff --git a/share/man/man4/ng_iface.4 b/share/man/man4/ng_iface.4
index 35097bf..9291f6d 100644
--- a/share/man/man4/ng_iface.4
+++ b/share/man/man4/ng_iface.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_IFACE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_iface
 .Nd interface netgraph node type
diff --git a/share/man/man4/ng_ksocket.4 b/share/man/man4/ng_ksocket.4
index 96ee7a4..122c135 100644
--- a/share/man/man4/ng_ksocket.4
+++ b/share/man/man4/ng_ksocket.4
@@ -36,7 +36,7 @@
 .\"
 .Dd November 15, 1999
 .Dt NG_KSOCKET 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_ksocket
 .Nd kernel socket netgraph node type
diff --git a/share/man/man4/ng_lmi.4 b/share/man/man4/ng_lmi.4
index c7cbab3..71f8790 100644
--- a/share/man/man4/ng_lmi.4
+++ b/share/man/man4/ng_lmi.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_LMI 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_lmi
 .Nd frame relay LMI protocol netgraph node type
diff --git a/share/man/man4/ng_mppc.4 b/share/man/man4/ng_mppc.4
index c6f8eaf..3d6add6 100644
--- a/share/man/man4/ng_mppc.4
+++ b/share/man/man4/ng_mppc.4
@@ -37,7 +37,7 @@
 .\"
 .Dd December 8, 1999
 .Dt NG_MPPC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_mppc
 .Nd Microsoft MPPC/MPPE compression and encryption netgraph node type
diff --git a/share/man/man4/ng_one2many.4 b/share/man/man4/ng_one2many.4
index 5c63fa3..c30d84b 100644
--- a/share/man/man4/ng_one2many.4
+++ b/share/man/man4/ng_one2many.4
@@ -36,7 +36,7 @@
 .\"
 .Dd January 26, 2001
 .Dt NG_ONE2MANY 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_one2many
 .Nd packet multiplexing netgraph node type
diff --git a/share/man/man4/ng_ppp.4 b/share/man/man4/ng_ppp.4
index 29804a8..e1793f7 100644
--- a/share/man/man4/ng_ppp.4
+++ b/share/man/man4/ng_ppp.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_PPP 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_ppp
 .Nd PPP protocol netgraph node type
diff --git a/share/man/man4/ng_pppoe.4 b/share/man/man4/ng_pppoe.4
index 2fa026a..20420a4 100644
--- a/share/man/man4/ng_pppoe.4
+++ b/share/man/man4/ng_pppoe.4
@@ -37,7 +37,7 @@
 .\"
 .Dd October 28, 1999
 .Dt NG_PPPOE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_pppoe
 .Nd RFC 2516 PPPOE protocol netgraph node type
diff --git a/share/man/man4/ng_pptpgre.4 b/share/man/man4/ng_pptpgre.4
index d99f2da..e2755ff 100644
--- a/share/man/man4/ng_pptpgre.4
+++ b/share/man/man4/ng_pptpgre.4
@@ -37,7 +37,7 @@
 .\"
 .Dd November 29, 1999
 .Dt NG_PPTPGRE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_pptpgre
 .Nd PPTP GRE protocol netgraph node type
diff --git a/share/man/man4/ng_rfc1490.4 b/share/man/man4/ng_rfc1490.4
index d56682e..c78f9ee 100644
--- a/share/man/man4/ng_rfc1490.4
+++ b/share/man/man4/ng_rfc1490.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_RFC1490 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_rfc1490
 .Nd RFC 1490 netgraph node type
diff --git a/share/man/man4/ng_socket.4 b/share/man/man4/ng_socket.4
index f16a677..817f05b 100644
--- a/share/man/man4/ng_socket.4
+++ b/share/man/man4/ng_socket.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_SOCKET 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_socket
 .Nd netgraph socket node type
diff --git a/share/man/man4/ng_split.4 b/share/man/man4/ng_split.4
index 989f283..0655395 100644
--- a/share/man/man4/ng_split.4
+++ b/share/man/man4/ng_split.4
@@ -36,7 +36,7 @@
 .\"
 .Dd February 19, 2001
 .Dt NG_SPLIT 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_split
 .Nd netgraph node to separate incoming and outgoing flows
diff --git a/share/man/man4/ng_tee.4 b/share/man/man4/ng_tee.4
index ee35cc2..f56ff37 100644
--- a/share/man/man4/ng_tee.4
+++ b/share/man/man4/ng_tee.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_TEE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_tee
 .Nd netgraph ``tee'' node type
diff --git a/share/man/man4/ng_tty.4 b/share/man/man4/ng_tty.4
index 98ce9b6..29cde80 100644
--- a/share/man/man4/ng_tty.4
+++ b/share/man/man4/ng_tty.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_TTY 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_tty
 .Nd netgraph node type that is also a line discipline
diff --git a/share/man/man4/ng_vjc.4 b/share/man/man4/ng_vjc.4
index 00ad8e9..cb1b46f 100644
--- a/share/man/man4/ng_vjc.4
+++ b/share/man/man4/ng_vjc.4
@@ -37,7 +37,7 @@
 .\"
 .Dd January 19, 1999
 .Dt NG_VJC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ng_vjc
 .Nd Van Jacobson compression netgraph node type
diff --git a/share/man/man4/ohci.4 b/share/man/man4/ohci.4
index d151407..1f5406f 100644
--- a/share/man/man4/ohci.4
+++ b/share/man/man4/ohci.4
@@ -32,7 +32,7 @@
 .\"
 .Dd February 21, 1999
 .Dt OHCI 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ohci
 .Nd OHCI USB Host Controller driver
diff --git a/share/man/man4/pass.4 b/share/man/man4/pass.4
index bd1f243..7a96dee 100644
--- a/share/man/man4/pass.4
+++ b/share/man/man4/pass.4
@@ -29,7 +29,7 @@
 .\"
 .Dd October 10, 1998
 .Dt PASS 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm pass
 .Nd CAM application passthrough driver
diff --git a/share/man/man4/pci.4 b/share/man/man4/pci.4
index 629c2d7..8aa8b60 100644
--- a/share/man/man4/pci.4
+++ b/share/man/man4/pci.4
@@ -26,7 +26,7 @@
 .\"
 .Dd October 24, 1999
 .Dt PCI 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm pci
 .Nd generic PCI driver
diff --git a/share/man/man4/pcm.4 b/share/man/man4/pcm.4
index 9a51688..f78cb87 100644
--- a/share/man/man4/pcm.4
+++ b/share/man/man4/pcm.4
@@ -27,7 +27,7 @@
 .\"
 .Dd June 3, 1998
 .Dt PCM 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm pcm ,
 .Nm snd
diff --git a/share/man/man4/pcvt.4 b/share/man/man4/pcvt.4
index b290e83..e30cdd5 100644
--- a/share/man/man4/pcvt.4
+++ b/share/man/man4/pcvt.4
@@ -39,7 +39,7 @@
 .\"
 .Dd March 26, 2000
 .Dt PCVT 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm pcvt ,
 .Nm vt
diff --git a/share/man/man4/ppbus.4 b/share/man/man4/ppbus.4
index b024cc1..dcdd842 100644
--- a/share/man/man4/ppbus.4
+++ b/share/man/man4/ppbus.4
@@ -26,7 +26,7 @@
 .\"
 .Dd March 1, 1998
 .Dt PPBUS 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ppbus
 .Nd Parallel Port Bus system
diff --git a/share/man/man4/ppc.4 b/share/man/man4/ppc.4
index da92b16..9a57f71 100644
--- a/share/man/man4/ppc.4
+++ b/share/man/man4/ppc.4
@@ -26,7 +26,7 @@
 .\"
 .Dd March 5, 1998
 .Dt PPC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ppc
 .Nd Parallel Port Chipset driver
diff --git a/share/man/man4/ppi.4 b/share/man/man4/ppi.4
index 287e5581..335e19c 100644
--- a/share/man/man4/ppi.4
+++ b/share/man/man4/ppi.4
@@ -27,7 +27,7 @@
 .\"
 .Dd January 2, 1998
 .Dt PPI 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ppi
 .Nd "user-space interface to ppbus parallel 'geek' port"
diff --git a/share/man/man4/psm.4 b/share/man/man4/psm.4
index 716c537..07bbb6b 100644
--- a/share/man/man4/psm.4
+++ b/share/man/man4/psm.4
@@ -28,7 +28,7 @@
 .\"
 .Dd April 1, 2000
 .Dt PSM 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm psm
 .Nd PS/2 mouse style pointing device driver
diff --git a/share/man/man4/pt.4 b/share/man/man4/pt.4
index ab3a7b2..d85ea8c 100644
--- a/share/man/man4/pt.4
+++ b/share/man/man4/pt.4
@@ -27,7 +27,7 @@
 .\"
 .Dd March 2, 1995
 .Dt PT 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm pt
 .Nd SCSI processor type driver
diff --git a/share/man/man4/pty.4 b/share/man/man4/pty.4
index 4055897..7acc436 100644
--- a/share/man/man4/pty.4
+++ b/share/man/man4/pty.4
@@ -34,7 +34,7 @@
 .\"
 .Dd November 30, 1993
 .Dt PTY 4
-.Os BSD 4.2
+.Os
 .Sh NAME
 .Nm pty
 .Nd pseudo terminal driver
diff --git a/share/man/man4/rl.4 b/share/man/man4/rl.4
index f5679e9..295c5e8 100644
--- a/share/man/man4/rl.4
+++ b/share/man/man4/rl.4
@@ -32,7 +32,7 @@
 .\"
 .Dd November 4, 1998
 .Dt RL 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm rl
 .Nd RealTek 8129/8139 fast ethernet device driver
diff --git a/share/man/man4/sa.4 b/share/man/man4/sa.4
index 27d8b71..aedc72c 100644
--- a/share/man/man4/sa.4
+++ b/share/man/man4/sa.4
@@ -27,7 +27,7 @@
 .\"
 .Dd June 6, 1999
 .Dt SA 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sa
 .Nd SCSI Sequential Access device driver
diff --git a/share/man/man4/sbc.4 b/share/man/man4/sbc.4
index fc504f9..69eb3a0 100644
--- a/share/man/man4/sbc.4
+++ b/share/man/man4/sbc.4
@@ -27,7 +27,7 @@
 .\"
 .Dd December 18, 1999
 .Dt SBC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sbc
 .Nd Creative Sound Blaster ISA and compatible bridge device driver
diff --git a/share/man/man4/screen.4 b/share/man/man4/screen.4
index cb25dd7..5d7ae76 100644
--- a/share/man/man4/screen.4
+++ b/share/man/man4/screen.4
@@ -3,7 +3,7 @@
 .\"
 .Dd October 6, 2000
 .Dt SCREEN 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm screen
 .Nd pc display interface
diff --git a/share/man/man4/scsi.4 b/share/man/man4/scsi.4
index c2da1f6..2e9d394 100644
--- a/share/man/man4/scsi.4
+++ b/share/man/man4/scsi.4
@@ -26,7 +26,7 @@
 .\" $FreeBSD$
 .Dd October 15, 1998
 .Dt SCSI 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm SCSI ,
 .Nm CAM
diff --git a/share/man/man4/sd.4 b/share/man/man4/sd.4
index 3807b66..7cf6d4c 100644
--- a/share/man/man4/sd.4
+++ b/share/man/man4/sd.4
@@ -27,7 +27,7 @@
 .\"
 .Dd October 15, 1998
 .Dt SD 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sd
 .Nd SCSI disk driver
diff --git a/share/man/man4/ses.4 b/share/man/man4/ses.4
index 73f29e51f..64d7d88 100644
--- a/share/man/man4/ses.4
+++ b/share/man/man4/ses.4
@@ -27,7 +27,7 @@
 .\"
 .Dd January 29, 2000
 .Dt SES 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ses
 .Nd SCSI Environmental Services driver
diff --git a/share/man/man4/sf.4 b/share/man/man4/sf.4
index 3c9d6ab..54960d1 100644
--- a/share/man/man4/sf.4
+++ b/share/man/man4/sf.4
@@ -32,7 +32,7 @@
 .\"
 .Dd July 22, 1999
 .Dt SF 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sf
 .Nd Adaptec AIC-6915
diff --git a/share/man/man4/si.4 b/share/man/man4/si.4
index 60a9cc4..e83bf97 100644
--- a/share/man/man4/si.4
+++ b/share/man/man4/si.4
@@ -1,6 +1,6 @@
 .\" $FreeBSD$
 .Dd September 16, 1995
-.Os FreeBSD
+.Os
 .Dt SI 4
 .Sh NAME
 .Nm si
diff --git a/share/man/man4/sio.4 b/share/man/man4/sio.4
index 15099a6..6e23191 100644
--- a/share/man/man4/sio.4
+++ b/share/man/man4/sio.4
@@ -38,7 +38,7 @@
 .\"
 .Dd March 31, 2000
 .Dt SIO 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sio
 .Nd "fast interrupt driven asynchronous serial communications interface"
diff --git a/share/man/man4/sk.4 b/share/man/man4/sk.4
index 4cafd9e..ca14e88 100644
--- a/share/man/man4/sk.4
+++ b/share/man/man4/sk.4
@@ -32,7 +32,7 @@
 .\"
 .Dd July 3, 1999
 .Dt SK 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sk
 .Nd "SysKonnect SK-984x and SK-982x PCI gigabit ethernet adapter driver"
diff --git a/share/man/man4/smb.4 b/share/man/man4/smb.4
index 6b2ef95..0a9075e 100644
--- a/share/man/man4/smb.4
+++ b/share/man/man4/smb.4
@@ -26,7 +26,7 @@
 .\"
 .Dd October 25, 1998
 .Dt SMB 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm smb
 .Nd SMB generic I/O device driver
diff --git a/share/man/man4/smbus.4 b/share/man/man4/smbus.4
index c9ee083..054779e 100644
--- a/share/man/man4/smbus.4
+++ b/share/man/man4/smbus.4
@@ -26,7 +26,7 @@
 .\"
 .Dd August 10, 1998
 .Dt SMBUS 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm smbus
 .Nd System Management Bus
diff --git a/share/man/man4/smp.4 b/share/man/man4/smp.4
index b033e0d..179a80d 100644
--- a/share/man/man4/smp.4
+++ b/share/man/man4/smp.4
@@ -25,7 +25,7 @@
 .\"
 .Dd August 4, 1997
 .Dt SMP 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm SMP
 .Nd description of the FreeBSD Symmetric MultiProcessor kernel
diff --git a/share/man/man4/snd_csa.4 b/share/man/man4/snd_csa.4
index e7eb400..9090a25 100644
--- a/share/man/man4/snd_csa.4
+++ b/share/man/man4/snd_csa.4
@@ -27,7 +27,7 @@
 .\"
 .Dd December 18, 1999
 .Dt CSA 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm csa
 .Nd Crystal Semiconductor CS461x/462x/428x PCI bridge device driver
diff --git a/share/man/man4/snd_gusc.4 b/share/man/man4/snd_gusc.4
index 49ef399..5a788a2 100644
--- a/share/man/man4/snd_gusc.4
+++ b/share/man/man4/snd_gusc.4
@@ -27,7 +27,7 @@
 .\"
 .Dd December 18, 1999
 .Dt GUSC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm gusc
 .Nd Gravis UltraSound ISA bridge device driver
diff --git a/share/man/man4/snd_sbc.4 b/share/man/man4/snd_sbc.4
index fc504f9..69eb3a0 100644
--- a/share/man/man4/snd_sbc.4
+++ b/share/man/man4/snd_sbc.4
@@ -27,7 +27,7 @@
 .\"
 .Dd December 18, 1999
 .Dt SBC 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sbc
 .Nd Creative Sound Blaster ISA and compatible bridge device driver
diff --git a/share/man/man4/snp.4 b/share/man/man4/snp.4
index 27cb120..8eda3bc 100644
--- a/share/man/man4/snp.4
+++ b/share/man/man4/snp.4
@@ -3,7 +3,7 @@
 .\"
 .Dd February 24, 1995
 .Dt SNP 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm snp
 .Nd tty snoop interface
diff --git a/share/man/man4/spkr.4 b/share/man/man4/spkr.4
index 07a4d7b..b2775fd 100644
--- a/share/man/man4/spkr.4
+++ b/share/man/man4/spkr.4
@@ -3,7 +3,7 @@
 .\"
 .Dd November 7, 1993
 .Dt SPKR 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm speaker ,
 .Nm spkr
diff --git a/share/man/man4/st.4 b/share/man/man4/st.4
index a654c37..e77028d 100644
--- a/share/man/man4/st.4
+++ b/share/man/man4/st.4
@@ -27,7 +27,7 @@
 .\"
 .Dd October 15, 1998
 .Dt ST 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm st
 .Nd SCSI tape driver
diff --git a/share/man/man4/ste.4 b/share/man/man4/ste.4
index ad43b79..d714553 100644
--- a/share/man/man4/ste.4
+++ b/share/man/man4/ste.4
@@ -32,7 +32,7 @@
 .\"
 .Dd August 21, 1999
 .Dt STE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ste
 .Nd "Sundance Technologies ST201 fast ethernet device driver"
diff --git a/share/man/man4/sym.4 b/share/man/man4/sym.4
index 0a8a640..d4eaedd 100644
--- a/share/man/man4/sym.4
+++ b/share/man/man4/sym.4
@@ -58,7 +58,7 @@
 .\"
 .Dd January 12, 2000
 .Dt SYM 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sym
 .Nd NCR/Symbios/LSI Logic 53C8XX PCI SCSI host adapter driver
diff --git a/share/man/man4/syscons.4 b/share/man/man4/syscons.4
index 50e6a1f..2b05dc3 100644
--- a/share/man/man4/syscons.4
+++ b/share/man/man4/syscons.4
@@ -28,7 +28,7 @@
 .\"
 .Dd June 30, 1999
 .Dt SYSCONS 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm syscons ,
 .Nm sc
diff --git a/share/man/man4/sysmouse.4 b/share/man/man4/sysmouse.4
index ceb55a6..bc77dc0 100644
--- a/share/man/man4/sysmouse.4
+++ b/share/man/man4/sysmouse.4
@@ -29,7 +29,7 @@
 .\"
 .Dd December 3, 1997
 .Dt SYSMOUSE 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sysmouse
 .\" .Nd supplies mouse data from syscons for other applications
diff --git a/share/man/man4/tcp.4 b/share/man/man4/tcp.4
index 27283c9..ec0c358 100644
--- a/share/man/man4/tcp.4
+++ b/share/man/man4/tcp.4
@@ -34,7 +34,7 @@
 .\"
 .Dd February 14, 1995
 .Dt TCP 4
-.Os BSD 4.2
+.Os
 .Sh NAME
 .Nm tcp
 .Nd Internet Transmission Control Protocol
diff --git a/share/man/man4/termios.4 b/share/man/man4/termios.4
index e2cab72..b549296 100644
--- a/share/man/man4/termios.4
+++ b/share/man/man4/termios.4
@@ -34,7 +34,7 @@
 .\"
 .Dd April 19, 1994
 .Dt TERMIOS 4
-.Os BSD 4
+.Os
 .Sh NAME
 .Nm termios
 .Nd general terminal line discipline
diff --git a/share/man/man4/ti.4 b/share/man/man4/ti.4
index 08427ca..e832787 100644
--- a/share/man/man4/ti.4
+++ b/share/man/man4/ti.4
@@ -32,7 +32,7 @@
 .\"
 .Dd March 4, 1999
 .Dt TI 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ti
 .Nd "Alteon Networks Tigon I and Tigon II gigabit ethernet driver"
diff --git a/share/man/man4/tl.4 b/share/man/man4/tl.4
index bbda366..caf4ab8 100644
--- a/share/man/man4/tl.4
+++ b/share/man/man4/tl.4
@@ -32,7 +32,7 @@
 .\"
 .Dd May 1, 1998
 .Dt TL 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm tl
 .Nd Texas Instruments ThunderLAN ethernet device driver
diff --git a/share/man/man4/ttcp.4 b/share/man/man4/ttcp.4
index 5a61e58..133a82a 100644
--- a/share/man/man4/ttcp.4
+++ b/share/man/man4/ttcp.4
@@ -29,7 +29,7 @@
 .\"
 .Dd January 18, 1995
 .Dt TTCP 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ttcp
 .Nd Transmission Control Protocol Extensions for Transactions
diff --git a/share/man/man4/tty.4 b/share/man/man4/tty.4
index 825d855..ef475eb 100644
--- a/share/man/man4/tty.4
+++ b/share/man/man4/tty.4
@@ -34,7 +34,7 @@
 .\"
 .Dd August 14, 1992
 .Dt TTY 4
-.Os BSD 4
+.Os
 .Sh NAME
 .Nm tty
 .Nd general terminal interface
diff --git a/share/man/man4/tx.4 b/share/man/man4/tx.4
index 7c15c94..8a37970 100644
--- a/share/man/man4/tx.4
+++ b/share/man/man4/tx.4
@@ -27,7 +27,7 @@
 .\"
 .Dd February 8, 2001
 .Dt TX 4 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm tx
 .Nd "SMC 83c17x Fast Ethernet device driver"
diff --git a/share/man/man4/udp.4 b/share/man/man4/udp.4
index 04963bf..bd9488e 100644
--- a/share/man/man4/udp.4
+++ b/share/man/man4/udp.4
@@ -34,7 +34,7 @@
 .\"
 .Dd June 5, 1993
 .Dt UDP 4
-.Os BSD 4.2
+.Os
 .Sh NAME
 .Nm udp
 .Nd Internet User Datagram Protocol
diff --git a/share/man/man4/uhci.4 b/share/man/man4/uhci.4
index d8d08a8..60cbd04 100644
--- a/share/man/man4/uhci.4
+++ b/share/man/man4/uhci.4
@@ -33,7 +33,7 @@
 .\"
 .Dd February 21, 1999
 .Dt UHCI 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm uhci
 .Nd UHCI USB Host Controller driver
diff --git a/share/man/man4/ukbd.4 b/share/man/man4/ukbd.4
index 31e97e9..7c51aca 100644
--- a/share/man/man4/ukbd.4
+++ b/share/man/man4/ukbd.4
@@ -32,7 +32,7 @@
 .\"
 .Dd April 11, 1999
 .Dt UKBD 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ukbd
 .Nd USB keyboard driver
diff --git a/share/man/man4/umass.4 b/share/man/man4/umass.4
index d2f5500..dbec07f 100644
--- a/share/man/man4/umass.4
+++ b/share/man/man4/umass.4
@@ -32,7 +32,7 @@
 .\"
 .Dd May 3, 1999
 .Dt UMASS 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm umass
 .Nd USB Mass Storage Devices driver
diff --git a/share/man/man4/ums.4 b/share/man/man4/ums.4
index 87188f2..917738f 100644
--- a/share/man/man4/ums.4
+++ b/share/man/man4/ums.4
@@ -32,7 +32,7 @@
 .\"
 .Dd April 11, 1999
 .Dt UMS 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm ums
 .Nd USB mouse driver
diff --git a/share/man/man4/urio.4 b/share/man/man4/urio.4
index 3655895..d1abbf4 100644
--- a/share/man/man4/urio.4
+++ b/share/man/man4/urio.4
@@ -32,7 +32,7 @@
 .\"
 .Dd March 5, 2000
 .Dt URIO 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm urio
 .Nd USB driver for the Rio500 MP3 player
diff --git a/share/man/man4/usb.4 b/share/man/man4/usb.4
index 3208d57..8f94390 100644
--- a/share/man/man4/usb.4
+++ b/share/man/man4/usb.4
@@ -32,7 +32,7 @@
 .\"
 .Dd February 21, 1999
 .Dt USB 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm usb
 .Nd Universal Serial Bus
diff --git a/share/man/man4/uscanner.4 b/share/man/man4/uscanner.4
index 681fb80..7eb554c 100644
--- a/share/man/man4/uscanner.4
+++ b/share/man/man4/uscanner.4
@@ -32,7 +32,7 @@
 .\"
 .Dd October 26, 2000
 .Dt USCANNER 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm uscanner
 .Nd USB Scanners
diff --git a/share/man/man4/vga.4 b/share/man/man4/vga.4
index dc229bb..aa14731 100644
--- a/share/man/man4/vga.4
+++ b/share/man/man4/vga.4
@@ -28,7 +28,7 @@
 .\"
 .Dd June 30, 1999
 .Dt VGA 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm vga
 .Nd generic video card interface
diff --git a/share/man/man4/vinum.4 b/share/man/man4/vinum.4
index dbf559d..7ed0a40 100644
--- a/share/man/man4/vinum.4
+++ b/share/man/man4/vinum.4
@@ -38,7 +38,7 @@
 .\"
 .Dd October 5, 1999
 .Dt vinum 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm vinum
 .Nd Logical Volume Manager
diff --git a/share/man/man4/vpo.4 b/share/man/man4/vpo.4
index b9e921a..c79fc6b 100644
--- a/share/man/man4/vpo.4
+++ b/share/man/man4/vpo.4
@@ -26,7 +26,7 @@
 .\"
 .Dd March 5, 1998
 .Dt VPO 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm vpo
 .Nd parallel to SCSI interface driver
diff --git a/share/man/man4/vr.4 b/share/man/man4/vr.4
index e05d781..0765e71 100644
--- a/share/man/man4/vr.4
+++ b/share/man/man4/vr.4
@@ -32,7 +32,7 @@
 .\"
 .Dd November 22, 1998
 .Dt VR 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm vr
 .Nd "VIA Technologies VT3043 and VT86C100A ethernet device driver"
diff --git a/share/man/man4/wb.4 b/share/man/man4/wb.4
index fb8dedf..b9bb226 100644
--- a/share/man/man4/wb.4
+++ b/share/man/man4/wb.4
@@ -32,7 +32,7 @@
 .\"
 .Dd November 4, 1998
 .Dt WB 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm wb
 .Nd Winbond W89C840F fast ethernet device driver
diff --git a/share/man/man4/wi.4 b/share/man/man4/wi.4
index b1eae70..c398b37 100644
--- a/share/man/man4/wi.4
+++ b/share/man/man4/wi.4
@@ -32,7 +32,7 @@
 .\"
 .Dd April 21, 1999
 .Dt WI 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm wi
 .Nd Lucent Technologies WaveLAN/IEEE 802.11 PCMCIA driver
diff --git a/share/man/man4/worm.4 b/share/man/man4/worm.4
index bd3caf6..d9c5ec1 100644
--- a/share/man/man4/worm.4
+++ b/share/man/man4/worm.4
@@ -36,7 +36,7 @@
 .\" "
 .Dd October 15, 1998
 .Dt WORM 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm worm
 .Nd write-once (CD-R) disk driver
diff --git a/share/man/man4/wx.4 b/share/man/man4/wx.4
index ef44b21..e294072 100644
--- a/share/man/man4/wx.4
+++ b/share/man/man4/wx.4
@@ -26,7 +26,7 @@
 .\"
 .Dd October 27, 2000
 .Dt WX 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm wx
 .Nd Intel Gigabit Ethernet device driver
diff --git a/share/man/man4/xl.4 b/share/man/man4/xl.4
index dd39253..dad534b 100644
--- a/share/man/man4/xl.4
+++ b/share/man/man4/xl.4
@@ -32,7 +32,7 @@
 .\"
 .Dd August 16, 1998
 .Dt XL 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm xl
 .Nd "3Com Etherlink XL and Fast Etherlink XL ethernet device driver"
diff --git a/share/man/man4/xpt.4 b/share/man/man4/xpt.4
index f41f334..f6bcdd6 100644
--- a/share/man/man4/xpt.4
+++ b/share/man/man4/xpt.4
@@ -29,7 +29,7 @@
 .\"
 .Dd October 10, 1998
 .Dt XPT 4
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm xpt
 .Nd CAM transport layer interface
diff --git a/share/man/man4/yp.4 b/share/man/man4/yp.4
index e2313fa..37ed0aa 100644
--- a/share/man/man4/yp.4
+++ b/share/man/man4/yp.4
@@ -30,7 +30,7 @@
 .\"
 .Dd April 5, 1993
 .Dt YP 4
-.Os BSD 4.2
+.Os
 .Sh NAME
 .Nm yp
 .Nd description of the YP/NIS system