commit 83d0db908f5a29b59892d3f549b539b1d1795303
Author: Shane Auckland <shane.auckland@gmail.com>
Date:   Tue May 14 07:20:49 2013 +0100

    1938430-new_changes

diff --git a/core/includes/theme.inc b/core/includes/theme.inc
index 7866fd7..150c9a3 100644
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
@@ -1646,6 +1646,10 @@ function template_preprocess_datetime(&$variables) {
       $variables['html'] = FALSE;
     }
   }
+
+  // Add a 'datetime' class.
+  $variables['attributes']['class'][] = 'datetime';
+
   $variables['attributes'] = new Attribute($variables['attributes']);
 }
 
diff --git a/core/modules/comment/comment.module b/core/modules/comment/comment.module
index 08aa510..ba2acb7 100644
--- a/core/modules/comment/comment.module
+++ b/core/modules/comment/comment.module
@@ -1726,7 +1726,7 @@ function template_preprocess_comment_wrapper(&$variables) {
   // The comment form is optional and may not exist.
   $variables['content'] += array('comment_form' => array());
 
-  // Add comment wrapper class
+  // Add a comment wrapper class.
   $variables['attributes']['class'][] = 'comment-wrapper';
 }
 
diff --git a/core/modules/layout/lib/Drupal/layout/Plugin/Layout/StaticLayout.php b/core/modules/layout/lib/Drupal/layout/Plugin/Layout/StaticLayout.php
index b48528a..f88da2f 100644
--- a/core/modules/layout/lib/Drupal/layout/Plugin/Layout/StaticLayout.php
+++ b/core/modules/layout/lib/Drupal/layout/Plugin/Layout/StaticLayout.php
@@ -83,7 +83,7 @@ public function renderLayout($admin = FALSE, $regions = array()) {
       '#theme' => $definition['theme'],
       '#content' => array(),
       '#attributes' => array(
-        'class' => drupal_html_class($definition['theme'])
+        'class' => drupal_html_class($definition['theme']),
       ),
     );