From 4493dc292f90a38fd694611347388d75e36c090a Mon Sep 17 00:00:00 2001
From: kn <kn@openbsd.org>
Date: Fri, 20 Jan 2023 17:15:22 +0000
Subject: [PATCH] Sync usage with SYNOPSIS, mention that -x may use stdout

Feedback from jmc and Crystal Kolipe
OK jmc
---
 usr.sbin/rdsetroot/rdsetroot.8 | 9 +++++++--
 usr.sbin/rdsetroot/rdsetroot.c | 4 ++--
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/usr.sbin/rdsetroot/rdsetroot.8 b/usr.sbin/rdsetroot/rdsetroot.8
index 2fc408962b6..9ec02988dff 100644
--- a/usr.sbin/rdsetroot/rdsetroot.8
+++ b/usr.sbin/rdsetroot/rdsetroot.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: rdsetroot.8,v 1.2 2019/04/05 21:44:32 schwarze Exp $
+.\"	$OpenBSD: rdsetroot.8,v 1.3 2023/01/20 17:15:22 kn Exp $
 .\"
 .\" Copyright (c) 2019 Theo de Raadt
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: April 5 2019 $
+.Dd $Mdocdate: January 20 2023 $
 .Dt RDSETROOT 8
 .Os
 .Sh NAME
@@ -45,6 +45,11 @@ Debug.
 Rather than inserting, extract the
 .Ar disk.fs
 image.
+If
+.Ar disk.fs
+is not specified,
+.Nm
+writes to standard output.
 The disk can be made accessible using
 .Xr vnconfig 8 ,
 filesystems can be manipulated, and finally re-inserted into the RAMDISK kernel.
diff --git a/usr.sbin/rdsetroot/rdsetroot.c b/usr.sbin/rdsetroot/rdsetroot.c
index dcc705f7022..fc2e7e0940d 100644
--- a/usr.sbin/rdsetroot/rdsetroot.c
+++ b/usr.sbin/rdsetroot/rdsetroot.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: rdsetroot.c,v 1.3 2021/10/24 21:24:19 deraadt Exp $ */
+/* $OpenBSD: rdsetroot.c,v 1.4 2023/01/20 17:15:22 kn Exp $ */
 
 /*
  * Copyright (c) 2019 Sunil Nimmagadda <sunil@openbsd.org>
@@ -294,6 +294,6 @@ usage(void)
 {
 	extern char *__progname;
 
-	fprintf(stderr, "usage: %s [-dx] bsd [fs]\n", __progname);
+	fprintf(stderr, "usage: %s [-dx] kernel [disk.fs]\n", __progname);
 	exit(1);
 }
-- 
2.20.1