Update the explanation of parity capabilities

to bring it into accord with the present getty(8) code.

PR:		bin/56325
MFC after:	3 days

1 files changed, 4 insertions, 6 deletions

diff --git a/etc/gettytab b/etc/gettytab
index 75d80e0..e630ade 100644
--- a/etc/gettytab
+++ b/etc/gettytab
@@ -19,11 +19,11 @@
 #
 # Parity defaults to even, but the Pc entry and all the `std' entries
 # specify no parity.   The different parities are:
-#     (none): same as even except -inpck instead of inpck for login.
+#     (none): same as ep for getty.  login will use terminal as is.
 #     ep:     getty will use raw mode (cs8 -parenb) (unless rw is set) and
 #             fake parity.  login will use even parity (cs7 parenb -parodd).
 #     op:     same as ep except odd parity (cs7 parenb parodd) for login.
-#             op overrides ep.
+#             getty will fake odd parity as well.
 #     ap:     same as ep except -inpck instead of inpck for login.
 #             ap overrides op and ep.
 #     np:     1. don't fake parity in getty.  The fake parity garbles
@@ -32,10 +32,8 @@
 #                try to fake parity.  It could just use cbreak mode so as
 #                not to force cs8 and let the hardware handle the parity.
 #                login has to be rely on the hardware anyway.
-#             2. set PASS8, giving cs8 -parenb -istrip -inpck.
-#     np:ep:  same as np except inpck.
-#     np:op:  same as np:ep except for parodd (but parodd is overridden).
-#     np:ap:  same as np except istrip.
+#             2. set cs8 -parenb -istrip -inpck.
+#     ep:op:  same as ap.
 #
 default:\
 	:cb:ce:ck:lc:fd#1000:im=\r\n%s/%m (%h) (%t)\r\n\r\n:sp#1200:\