-Wall.

2 files changed, 11 insertions, 9 deletions

diff --git a/sbin/mount_null/mount_null.8 b/sbin/mount_null/mount_null.8
index 38473fa..9ed773e 100644
--- a/sbin/mount_null/mount_null.8
+++ b/sbin/mount_null/mount_null.8
@@ -35,7 +35,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)mount_null.8	8.6 (Berkeley) 5/1/95
-.\"	$Id: mount_null.8,v 1.7 1997/02/22 14:32:50 peter Exp $
+.\"	$Id: mount_null.8,v 1.8 1997/03/11 12:33:34 peter Exp $
 .\"
 .Dd May 1, 1995
 .Dt MOUNT_NULL 8
@@ -51,7 +51,7 @@ demonstrate the use of a null file system layer
 .Ar mount-point
 .Sh DESCRIPTION
 The
-.Nm mount_null
+.Nm
 command creates a
 null layer, duplicating a sub-tree of the file system
 name space under another part of the global file system namespace.
@@ -68,7 +68,7 @@ A different device number for the virtual copy is returned by
 but in other respects it is indistinguishable from the original.
 .Pp
 The
-.Nm mount_null
+.Nm
 filesystem differs from a traditional
 loopback file system in two respects: it is implemented using
 a stackable layers techniques, and it's 
@@ -189,7 +189,9 @@ process when constructing other vnode stacks.
 .Sh CREATING OTHER FILE SYSTEM LAYERS
 One of the easiest ways to construct new file system layers is to make
 a copy of the null layer, rename all files and variables, and
-then begin modifying the copy.  Sed can be used to easily rename
+then begin modifying the copy.
+.Xr Sed 1
+can be used to easily rename
 all variables.
 .Pp
 The umap layer is an example of a layer descended from the 
@@ -228,6 +230,6 @@ UCLA Technical Report CSD-910056,
 .Em "Stackable Layers: an Architecture for File System Development" .
 .Sh HISTORY
 The
-.Nm mount_null
+.Nm
 utility first appeared in
 .Bx 4.4 .
diff --git a/sbin/mount_null/mount_null.c b/sbin/mount_null/mount_null.c
index 4e7f4c3..c58e06d 100644
--- a/sbin/mount_null/mount_null.c
+++ b/sbin/mount_null/mount_null.c
@@ -35,17 +35,17 @@
  */
 
 #ifndef lint
-char copyright[] =
+static const char copyright[] =
 "@(#) Copyright (c) 1992, 1993, 1994\n\
 	The Regents of the University of California.  All rights reserved.\n";
 #endif /* not lint */
 
 #ifndef lint
-/*
+#if 0
 static char sccsid[] = "@(#)mount_null.c	8.6 (Berkeley) 4/26/95";
-*/
+#endif
 static const char rcsid[] =
-	"$Id: mount_null.c,v 1.9 1997/03/29 03:32:42 imp Exp $";
+	"$Id$";
 #endif /* not lint */
 
 #include <sys/param.h>