From 5eee0d912824b37c2aa69353a676c5e4e641d518 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Fri, 13 Jan 2017 12:02:00 +0100
Subject: sauberere Pruefung der Option --may-modify-others

---
 backup.in | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/backup.in b/backup.in
index 38ed466..5ccb617 100755
--- a/backup.in
+++ b/backup.in
@@ -1,8 +1,8 @@
 #!/bin/bash
 
 rsyncOptions='-vxcaHAXF'
-rsync --may-modify-others 2>&1 | \
-  grep -q 'unknown option' ||
+rsync --help | \
+  grep -q -- --may-modify-others && \
   rsyncOptions="${rsyncOptions} --may-modify-others"
 
 [ -r "#ETCDIR#/backup.conf" ] && \
-- 
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