suppress reset-failed warning message

(cherry picked from commit f9f44b18ad)

src/scripts/stoptask.sh

@@ -22,7 +22,7 @@ task_id="$1"
 if [[ "${task_id}" == "all" ]]; then
     systemctl list-units --full --no-legend box-task-* # just to show who was running
     systemctl kill --signal=SIGTERM box-task-* || true
-    systemctl reset-failed box-task-* || true
+    systemctl reset-failed box-task-* 2>/dev/null || true
     systemctl stop box-task-* || true # because of remain-after-exit in Ubuntu 16 we have to deactivate the service
 else
     readonly service_name="box-task-${task_id}"

src/scripts/update.sh

@@ -25,10 +25,8 @@ echo "Updating Cloudron with ${source_dir}"
 
 readonly installer_path="${source_dir}/scripts/installer.sh"
 
-echo "=> reset service ${UPDATER_SERVICE} status in case it failed"
-if systemctl reset-failed "${UPDATER_SERVICE}"; then
-    echo "=> service has failed earlier"
-fi
+echo "=> reset service ${UPDATER_SERVICE} status (of previous update)"
+systemctl reset-failed "${UPDATER_SERVICE}" 2>/dev/null || true
 
 # StandardError will follow StandardOutput in default inherit mode. https://www.freedesktop.org/software/systemd/man/systemd.exec.html
 echo "=> Run installer.sh as ${UPDATER_SERVICE}."