Issue #2099577 follow-up by nod: Optimize method of installer's conditional language selector text.

core/includes/install.core.inc

@@ -1643,17 +1643,15 @@ function install_select_language_form($form, &$form_state, $files = array()) {
 
   if (empty($files)) {
     $form['help'] = array(
-      '#type' => 'container',
+      '#type' => 'item',
+      '#markup' => '<p>Translations will be downloaded from the <a href="http://localize.drupal.org">Drupal Translation website</a>. ' .
+      'If you do not want this, select <em>English</em>.</p>',
       '#states' => array(
         'invisible' => array(
           'select[name="langcode"]' => array('value' => 'en'),
         ),
       ),
     );
-    $form['help']['text'] = array(
-      '#markup' => '<p>Translations will be downloaded from the <a href="http://localize.drupal.org">Drupal Translation website</a>. ' .
-      'If you do not want this, select <em>English</em>.</p>',
-    );
   }
   $form['actions'] = array('#type' => 'actions');
   $form['actions']['submit'] =  array(