Update to Drupal 8.1.2. For more information, see https://www.drupal.org/project/drupal/releases/8.1.2

core/modules/views_ui/src/Controller/ViewsUIController.php

@@ -153,7 +153,6 @@ class ViewsUIController extends ControllerBase {
    * @return \Drupal\Core\Ajax\AjaxResponse|\Symfony\Component\HttpFoundation\RedirectResponse
    *   Either returns a rebuilt listing page as an AJAX response, or redirects
    *   back to the listing page.
-   *
    */
   public function ajaxOperation(ViewEntityInterface $view, $op, Request $request) {
     // Perform the operation.

core/modules/views_ui/src/Tests/ArgumentValidatorTest.php

@@ -43,7 +43,7 @@ class ArgumentValidatorTest extends UITestBase {
    * Saves the test_argument view with changes made to the argument handler
    * both with and without specify_validation turned on.
    *
-   * @param boolean $specify_validation
+   * @param bool $specify_validation
    */
   protected function saveArgumentHandlerWithValidationOptions($specify_validation) {
     $options = array(
@@ -53,4 +53,5 @@ class ArgumentValidatorTest extends UITestBase {
     $this->drupalPostForm('admin/structure/views/nojs/handler/test_argument/default/argument/id', $options, t('Apply'));
     $this->drupalPostForm('admin/structure/views/view/test_argument', array(), t('Save'));
   }
+
 }

core/modules/views_ui/src/Tests/DisplayAttachmentTest.php

@@ -57,4 +57,5 @@ class DisplayAttachmentTest extends UITestBase {
     $view->initDisplay();
     $this->assertEqual(array_keys($view->displayHandlers->get('attachment_1')->getOption('displays')), array('default', 'page_1'), 'The attached displays got saved as expected');
   }
+
 }

core/modules/views_ui/src/Tests/DisplayCRUDTest.php

@@ -35,7 +35,7 @@ class DisplayCRUDTest extends UITestBase {
     $settings['page[create]'] = FALSE;
     $view = $this->randomView($settings);
 
-    $path_prefix = 'admin/structure/views/view/' . $view['id'] .'/edit';
+    $path_prefix = 'admin/structure/views/view/' . $view['id'] . '/edit';
     $this->drupalGet($path_prefix);
 
     // Add a new display.
@@ -54,7 +54,7 @@ class DisplayCRUDTest extends UITestBase {
    */
   public function testRemoveDisplay() {
     $view = $this->randomView();
-    $path_prefix = 'admin/structure/views/view/' . $view['id'] .'/edit';
+    $path_prefix = 'admin/structure/views/view/' . $view['id'] . '/edit';
 
     $this->drupalGet($path_prefix . '/default');
     $this->assertNoFieldById('edit-displays-settings-settings-content-tab-content-details-top-actions-delete', 'Delete Page', 'Make sure there is no delete button on the default display.');
@@ -97,7 +97,7 @@ class DisplayCRUDTest extends UITestBase {
    */
   public function testDuplicateDisplay() {
     $view = $this->randomView();
-    $path_prefix = 'admin/structure/views/view/' . $view['id'] .'/edit';
+    $path_prefix = 'admin/structure/views/view/' . $view['id'] . '/edit';
     $path = $view['page[path]'];
 
     $this->drupalGet($path_prefix);

core/modules/views_ui/src/Tests/DisplayTest.php

@@ -89,7 +89,7 @@ class DisplayTest extends UITestBase {
    */
   public function testDisableDisplay() {
     $view = $this->randomView();
-    $path_prefix = 'admin/structure/views/view/' . $view['id'] .'/edit';
+    $path_prefix = 'admin/structure/views/view/' . $view['id'] . '/edit';
 
     $this->drupalGet($path_prefix);
     $this->assertFalse($this->xpath('//div[contains(@class, :class)]', array(':class' => 'views-display-disabled')), 'Make sure the disabled display css class does not appear after initial adding of a view.');

core/modules/views_ui/src/Tests/DuplicateTest.php

@@ -39,4 +39,5 @@ class DuplicateTest extends UITestBase {
     // Assert that the page title is correctly displayed.
     $this->assertText($view['label']);
   }
+
 }

core/modules/views_ui/src/Tests/ExposedFormUITest.php

@@ -169,4 +169,5 @@ class ExposedFormUITest extends UITestBase {
     $this->assertEqual($display['display_options']['sorts']['created']['expose'], ['label' => $edit['options[expose][label]']]);
     $this->assertEqual($display['display_options']['sorts']['created']['order'], 'DESC');
   }
+
 }

core/modules/views_ui/src/Tests/FilterUITest.php

@@ -119,4 +119,5 @@ class FilterUITest extends ViewTestBase {
     $this->drupalPostForm($path, $edit, t('Apply'));
     $this->assertText('This identifier has illegal characters.');
   }
+
 }

core/modules/views_ui/src/Tests/HandlerTest.php

@@ -276,6 +276,7 @@ class HandlerTest extends UITestBase {
    */
   public function assertNoDuplicateField($field_name, $entity_type) {
     $elements = $this->xpath('//td[.=:entity_type]/preceding-sibling::td[@class="title" and .=:title]', [':title' => $field_name, ':entity_type' => $entity_type]);
-    $this->assertEqual(1, count($elements), $field_name . ' appears just once in ' . $entity_type .  '.');
+    $this->assertEqual(1, count($elements), $field_name . ' appears just once in ' . $entity_type . '.');
   }
+
 }

core/modules/views_ui/src/Tests/NewViewConfigSchemaTest.php

@@ -38,7 +38,7 @@ class NewViewConfigSchemaTest extends WebTestBase {
       'standard:aggregator_feed',
       'standard:aggregator_item',
     );
-    foreach($wizards as $wizard_key) {
+    foreach ($wizards as $wizard_key) {
       $edit = array();
       $edit['label'] = $this->randomString();
       $edit['id'] = strtolower($this->randomMachineName());

core/modules/views_ui/src/Tests/UITestBase.php

@@ -87,5 +87,4 @@ abstract class UITestBase extends ViewTestBase {
     return parent::drupalGet($path, $options, $headers);
   }
 
-
 }

core/modules/views_ui/src/ViewEditForm.php

@@ -1071,7 +1071,7 @@ class ViewEditForm extends ViewFormBase {
         'type' => $type,
         'id' => $id,
       ), array('attributes' => $link_attributes)));
-      $build['fields'][$id]['#class'][] = Html::cleanCssIdentifier($display['id']. '-' . $type . '-' . $id);
+      $build['fields'][$id]['#class'][] = Html::cleanCssIdentifier($display['id'] . '-' . $type . '-' . $id);
 
       if ($executable->display_handler->useGroupBy() && $handler->usesGroupBy()) {
         $build['fields'][$id]['#settings_links'][] = $this->l(SafeMarkup::format('<span class="label">@text</span>', array('@text' => $this->t('Aggregation settings'))), new Url('views_ui.form_handler_group', array(