check for running jobs only

utils/mp-server/run_server

@@ -62,7 +62,7 @@ do
 	echo "started $SERVER server with command: 'wesnothd-$SERVER -c \"$SERVERBASE\"/wesnothd.cfg --port $PORT --threads $THREADS $PARAMETERS' (revision: $REV, pid: $PID) logging to: $LOG"
 	# wait a bit in case the process dies immediately
 	sleep 5
-	if jobs 1 > /dev/null
+	if jobs -l | grep Running
 	then # create some convenient links
 		ln -s "$SERVERBASE/logs/$LOG" "$LOG.$PID"
 		rm -f "$SERVERBASE"/old.log "$SERVERBASE"/old.pid