Issue #3180382 by phenaproxima, dww, tedbow: UpdateManagerUpdate doesn't need...

Issue #3180382 by phenaproxima, dww, tedbow: UpdateManagerUpdate doesn't need to use the renderer service

core/modules/update/src/Form/UpdateManagerUpdate.php

@@ -72,13 +72,10 @@ public static function create(ContainerInterface $container) {
   public function buildForm(array $form, FormStateInterface $form_state) {
     $this->moduleHandler->loadInclude('update', 'inc', 'update.manager');
 
-    $last_markup = [
+    $form['last_check'] = [
       '#theme' => 'update_last_check',
       '#last' => $this->state->get('update.last_check', 0),
     ];
-    $form['last_check'] = [
-      '#markup' => \Drupal::service('renderer')->render($last_markup),
-    ];
 
     if (!_update_manager_check_backends($form, 'update')) {
       return $form;

core/modules/update/tests/src/Functional/UpdateTestBase.php

@@ -110,6 +110,7 @@ protected function standardTests() {
     // Verify that the link to the Drupal project appears.
     $this->assertRaw(Link::fromTextAndUrl(t('Drupal'), Url::fromUri('http://example.com/project/drupal'))->toString());
     $this->assertNoText('No available releases found');
+    $this->assertSession()->pageTextContains('Last checked:');
   }
 
   /**