Only move /var/run/motd.new if it exists.

We must be hitting a race condition when update-motd is installed, since
we've only just written to /var/run/motd.new when we try and write to it.

From Launchpad:
Cron script spams due to not suppressing error when there is no /var/run/motd.new
https://bugs.launchpad.net/bugs/379044

diff --git a/bin/mythtv-update-motd b/bin/mythtv-update-motd
index d58aa411714b9c9c63265c41b836e229f6886f94..e38c62e3cf28f097ba744b411563c4da3f79b920 100755 (executable)
--- a/bin/mythtv-update-motd
+++ b/bin/mythtv-update-motd
@@ -12,5 +12,5 @@ fi
 cp /var/run/motd.orig /var/run/motd.new
 if mythtv-status $ARGS -h $HOST >> /var/run/motd.new
 then
-  mv /var/run/motd.new /var/run/motd
+  [ -f /var/run/motd.new ] && mv /var/run/motd.new /var/run/motd
 fi