Drupal standard fix.

Closes #3324349

src/Plugin/Block/EntityBlock.php

@@ -65,7 +65,7 @@ class EntityBlock extends BlockBase implements ContainerFactoryPluginInterface {
    *
    * @var array
    */
-  protected $view_mode_options;
+  protected $viewModeOptions;
 
   /**
    * An array of counters for the recursive rendering protection.
@@ -103,7 +103,7 @@ class EntityBlock extends BlockBase implements ContainerFactoryPluginInterface {
       $this->entityViewBuilder = $entityTypeManager->getHandler($this->entityTypeName, 'view_builder');
     }
 
-    $this->view_mode_options = $entityDisplayRepository->getViewModeOptions($this->entityTypeName);
+    $this->viewModeOptions = $entityDisplayRepository->getViewModeOptions($this->entityTypeName);
     $this->loggerFactory = $logger_factory;
   }
 
@@ -145,7 +145,7 @@ class EntityBlock extends BlockBase implements ContainerFactoryPluginInterface {
     $form['view_mode'] = [
       '#type' => 'select',
       '#title' => $this->t('View mode'),
-      '#options' => $this->view_mode_options,
+      '#options' => $this->viewModeOptions,
       '#default_value' => $view_mode,
     ];