Fixed failure loop in init.d script when grafana will not start (due to…

Fixed failure loop in init.d script when grafana will not start (due to permission issue or other), Fixes #1837

packaging/deb/init.d/grafana-server

@@ -87,6 +87,7 @@ case "$1" in
     # check if pid file has been written two
 	  if ! [[ -s $PID_FILE ]]; then
 	    log_end_msg 1
+	    exit 1
 	  fi
 
 		i=0
@@ -96,7 +97,10 @@ case "$1" in
 		do
 			sleep 1
 			i=$(($i + 1))
-			[ $i -gt $timeout ] && log_end_msg 1
+      if [ $i -gt $timeout ]; then
+			  log_end_msg 1
+			  exit 1
+			fi
 		done
   fi
   log_end_msg $return