- document -r flag

- add ident(1) to SEE ALSO

1 files changed, 13 insertions, 2 deletions

diff --git a/usr.bin/rcs/rcsdiff.1 b/usr.bin/rcs/rcsdiff.1
index 17036c46b1f..834c491478e 100644
--- a/usr.bin/rcs/rcsdiff.1
+++ b/usr.bin/rcs/rcsdiff.1
@@ -1,4 +1,4 @@
-.\"     $OpenBSD: rcsdiff.1,v 1.2 2005/10/08 19:20:49 joris Exp $
+.\"     $OpenBSD: rcsdiff.1,v 1.3 2005/10/08 20:31:01 niallo Exp $
 .\"
 .\" Copyright (c) 2005 Joris Vink <joris@openbsd.org>
 .\" All rights reserved.
@@ -24,12 +24,16 @@
 .Nm
 .Bk -words
 .Op Fl cnquV
+.Oo
+.Fl r Ar rev
+.Op Fl r Ar rev2
+.Oc
 .Ar file ...
 .Ek
 .Sh DESCRIPTION
 The
 .Nm
-program is used to compare two revisions of each RCS file given 
+program is used to compare two revisions of each RCS file given
 .Pp
 The following options are supported:
 .Bl -tag -width Ds
@@ -40,6 +44,12 @@ for more information.
 .It Fl n
 Produces a diff in the same format as that used by
 .Xr rcsdiff 1
+.It Fl r Ar rev
+If one -r option is given, the diff is generated between the
+working file and
+.Ar rev .
+If two -r options are given, the diff is generated between the
+two revisions specified.
 .It Fl q
 Be quiet about reporting.
 .It Fl u
@@ -57,6 +67,7 @@ are prepended to the argument list.
 .El
 .Sh SEE ALSO
 .Xr co 1 ,
+.Xr ident 1 ,
 .Xr rcs 1 ,
 .Xr rcsclean 1 ,
 .Xr rcsfile 5