diff --git a/core/lib/Drupal/Core/Form/FormErrorHandler.php b/core/lib/Drupal/Core/Form/FormErrorHandler.php
index 075c53d..df91969 100644
--- a/core/lib/Drupal/Core/Form/FormErrorHandler.php
+++ b/core/lib/Drupal/Core/Form/FormErrorHandler.php
@@ -76,13 +76,15 @@ protected function displayErrorMessages(FormStateInterface $form_state) {
     foreach ($this->errorLinkElements as $form_element) {
       $title = FormElementHelper::getElementTitle($form_element);
 
-      // Only show links to erroneous elements that are visible
+      // Only show links to erroneous elements that are visible.
       $is_visible_element = Element::isVisibleElement($form_element);
-      // And don't show links to elements which use their parent element for inline errors
+      // And don't show links to elements which use their parent element for
+      // inline errors.
       $not_use_parent = empty($form_element['#error_use_parent']);
-      // And only show links for elements that have a title themselves or have children with a title
+      // And only show links for elements that have a title themselves or have
+      // children with a title.
       $has_title = !empty($title);
-      // And only show links for elements with an id
+      // And only show links for elements with an ID.
       $has_id = !empty($form_element['#id']);
 
       if ($is_visible_element && $not_use_parent && $has_title && $has_id) {
@@ -94,7 +96,7 @@ protected function displayErrorMessages(FormStateInterface $form_state) {
       }
     }
 
-    // For all left over errors set normal error messages
+    // For all left over errors set normal error messages.
     foreach ($errors as $error) {
       $this->drupalSetMessage($error, 'error');
     }
@@ -116,7 +118,7 @@ protected function displayErrorMessages(FormStateInterface $form_state) {
   }
 
   /**
-   * Stores the errors of each element directly on the element and keep a list
+   * Stores the errors of each element directly on the element and keeps a list
    * of these elements
    *
    * We must provide a way for non-form functions to check the errors for a