Detach stderr in rpm initscript

packaging/rpm/init.d/grafana-server

@@ -82,7 +82,7 @@ case "$1" in
 
     # Start Daemon
     cd $GRAFANA_HOME
-    su -s /bin/sh -c "nohup ${DAEMON} ${DAEMON_OPTS} >> /dev/null 3>&1 &" $GRAFANA_USER
+    su -s /bin/sh -c "nohup ${DAEMON} ${DAEMON_OPTS} >> /dev/null 3>&1 &" $GRAFANA_USER 2> /dev/null
     return=$?
     if [ $return -eq 0 ]
     then