===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/grep/grep.1,v
retrieving revision 1.50
retrieving revision 1.51
diff -u -r1.50 -r1.51
--- src/usr.bin/grep/grep.1	2019/12/03 08:48:49	1.50
+++ src/usr.bin/grep/grep.1	2022/06/26 10:57:36	1.51
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: grep.1,v 1.50 2019/12/03 08:48:49 kn Exp $
+.\"	$OpenBSD: grep.1,v 1.51 2022/06/26 10:57:36 op Exp $
 .\" Copyright (c) 1980, 1990, 1993
 .\"	The Regents of the University of California.  All rights reserved.
 .\"
@@ -28,7 +28,7 @@
 .\"
 .\"	@(#)grep.1	8.3 (Berkeley) 4/18/94
 .\"
-.Dd $Mdocdate: December 3 2019 $
+.Dd $Mdocdate: June 26 2022 $
 .Dt GREP 1
 .Os
 .Sh NAME
@@ -49,6 +49,7 @@
 .Op Fl -context Ns Op = Ns Ar num
 .Op Fl -label Ns = Ns Ar name
 .Op Fl -line-buffered
+.Op Fl -null
 .Op Ar pattern
 .Op Ar
 .Ek
@@ -297,6 +298,15 @@
 Force output to be line buffered.
 By default, output is line buffered when standard output is a terminal
 and block buffered otherwise.
+.It Fl -null
+Output a zero byte instead of the character that normally follows a
+file name.
+This option makes the output unambiguous, even in the presence of file
+names containing unusual characters like newlines.
+This is similar to the
+.Ar -print0
+option in
+.Xr find 1 .
 .El
 .Sh EXIT STATUS
 The