coding standards issues

Closes #3358999

src/Plugin/Field/FieldFormatter/ListFormatter.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\list_formatter\Plugin\Field\FieldFormatter;
 
+use Drupal\Component\Utility\Html;
 use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Field\FormatterBase;
@@ -9,7 +10,6 @@ use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\list_formatter\Plugin\ListFormatterPluginManager;
 use Symfony\Component\DependencyInjection\ContainerInterface;
-use Drupal\Component\Utility\Html;
 
 /**
  * Plugin implementation of the 'list_formatter' formatter.