Fix unecessary logrotate message for bmc-watchdog (#456648)

diff -up freeipmi-0.8.2/bmc-watchdog/bmc-watchdog.logrotate.orig freeipmi-0.8.2/bmc-watchdog/bmc-watchdog.logrotate
--- freeipmi-0.8.2/bmc-watchdog/bmc-watchdog.logrotate.orig	2009-10-01 20:09:57.000000000 +0200
+++ freeipmi-0.8.2/bmc-watchdog/bmc-watchdog.logrotate	2010-01-07 16:35:55.000000000 +0100
@@ -11,6 +11,6 @@
   nomail
   notifempty
   postrotate
-  /etc/init.d/bmc-watchdog condrestart
+  /etc/init.d/bmc-watchdog condrestart >/dev/null 2>&1
   endscript
 }