add -C to the man page, and adjust usage();

ok lteo

1 files changed, 14 insertions, 2 deletions

diff --git a/bin/md5/cksum.1 b/bin/md5/cksum.1
index 4f67ce8cb98..f19d99a994e 100644
--- a/bin/md5/cksum.1
+++ b/bin/md5/cksum.1
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: cksum.1,v 1.28 2014/01/10 20:14:08 jmc Exp $
+.\"	$OpenBSD: cksum.1,v 1.29 2014/01/15 16:07:27 jmc Exp $
 .\"
 .\" Copyright (c) 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -32,7 +32,7 @@
 .\"
 .\"	@(#)cksum.1	8.2 (Berkeley) 4/28/95
 .\"
-.Dd $Mdocdate: January 10 2014 $
+.Dd $Mdocdate: January 15 2014 $
 .Dt CKSUM 1
 .Os
 .Sh NAME
@@ -44,6 +44,7 @@
 .Bk -words
 .Op Fl bcpqrtx
 .Op Fl a Ar algorithms
+.Op Fl C Ar checklist
 .Op Fl h Ar hashfile
 .Op Fl o Ar 1 | 2
 .Op Fl s Ar string
@@ -52,6 +53,7 @@
 .Nm sum
 .Op Fl bcpqrtx
 .Op Fl a Ar algorithms
+.Op Fl C Ar checklist
 .Op Fl h Ar hashfile
 .Op Fl o Ar 1 | 2
 .Op Fl s Ar string
@@ -150,6 +152,16 @@ This option is ignored for the
 and
 .Ar sysvsum
 algorithms, which do not use hexadecimal output.
+.It Fl C Ar checklist
+Compare the checksum of each
+.Ar file
+against the checksums in the
+.Ar checklist .
+Any specified
+.Ar file
+that is not listed in the
+.Ar checklist
+is ignored.
 .It Fl c
 If this option is specified, the
 .Ar file