diff --git a/core/modules/system/src/Controller/DbUpdateController.php b/core/modules/system/src/Controller/DbUpdateController.php
index 2526a18..62752ae 100644
--- a/core/modules/system/src/Controller/DbUpdateController.php
+++ b/core/modules/system/src/Controller/DbUpdateController.php
@@ -98,6 +98,12 @@ public static function create(ContainerInterface $container) {
   /**
    * Returns a database update page.
    *
+   * @param string $op
+   *   The update operation to perform. Can be any of the below:
+   *    - info
+   *    - selection
+   *    - run
+   *    - results
    * @param \Symfony\Component\HttpFoundation\Request $request
    *   The current request object.
    *
@@ -364,13 +370,13 @@ protected function results() {
       '#links' => $this->helpfulLinks(),
     );
 
-    // Output a list of queries executed.
+    // Output a list of info messages.
     if (!empty($_SESSION['update_results'])) {
       $all_messages = array();
       foreach ($_SESSION['update_results'] as $module => $updates) {
         if ($module != '#abort') {
           $module_has_message = FALSE;
-          $query_messages = array();
+          $info_messages = array();
           foreach ($updates as $number => $queries) {
             $messages = array();
             foreach ($queries as $query) {
@@ -395,7 +401,7 @@ protected function results() {
 
             if ($messages) {
               $module_has_message = TRUE;
-              $query_messages[] = array(
+              $info_messages[] = array(
                 '#theme' => 'item_list',
                 '#items' => $messages,
                 '#title' => $this->t('Update #@count', array('@count' => $number)),
@@ -403,13 +409,13 @@ protected function results() {
             }
           }
 
-          // If there were any messages in the queries then prefix them with the
-          // module name and add it to the global message list.
+          // If there were any messages then prefix them with the module name
+          // and add it to the global message list.
           if ($module_has_message) {
             $all_messages[] = array(
               '#type' => 'container',
               '#prefix' => '<h3>' . $this->t('@module module', array('@module' => $module)) . '</h3>',
-              '#children' => $query_messages,
+              '#children' => $info_messages,
             );
           }
         }