Issue #3312771: Fixes for coding standards

src/Form/EntityTypeForm.php

@@ -181,7 +181,7 @@ class EntityTypeForm extends FormBase {
         $properties[$property] = $definition->getLabel();
       }
 
-      $field_encrypt_default = isset($default_properties[$field_type]) ? $default_properties[$field_type] : [];
+      $field_encrypt_default = $default_properties[$field_type] ?? [];
       $form[$base_field] = [
         '#type' => 'checkboxes',
         '#title' => $this->t('@label properties', ['@label' => $base_field_label]),