Update powerwall.sh

powerwall.sh

@@ -1466,7 +1466,7 @@ fi
 		logrotate) LOGROTATE;;
 		update)
 			echo -e "${idsCL[LightCyan]}Will reboot monitoring services in the background to apply updates ..."
-			RESTARTALL_SERVICES &
+			RESTARTALL_SERVICES >/dev/null 2>&1 &
 			echo -e "${idsCL[Green]}Done${idsCL[Default]}\n"
 		;;
 		status)