Index: includes/locale.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/locale.inc,v
retrieving revision 1.258
diff -u -p -r1.258 locale.inc
--- includes/locale.inc	30 Jul 2010 02:47:27 -0000	1.258
+++ includes/locale.inc	5 Oct 2010 12:37:33 -0000
@@ -1585,7 +1585,7 @@ function _locale_translate_seek() {
   }
 
   $output .= theme('table', array('header' => $header, 'rows' => $rows, 'empty' => t('No strings available.')));
-  $output .= theme('pager', array('tags' => NULL));
+  $output .= theme('pager');
 
   return $output;
 }
Index: includes/pager.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/pager.inc,v
retrieving revision 1.83
diff -u -p -r1.83 pager.inc
--- includes/pager.inc	3 Oct 2010 02:47:30 -0000	1.83
+++ includes/pager.inc	5 Oct 2010 12:38:56 -0000
@@ -420,7 +420,10 @@ function theme_pager($variables) {
         'data' => $li_last,
       );
     }
-    return '<h2 class="element-invisible">' . t('Pages') . '</h2>' . theme('item_list', array('items' => $items, 'title' => NULL, 'type' => 'ul', 'attributes' => array('class' => array('pager'))));
+    return '<h2 class="element-invisible">' . t('Pages') . '</h2>' . theme('item_list', array(
+      'items' => $items,
+      'attributes' => array('class' => array('pager')),
+    ));
   }
 }
 
Index: modules/aggregator/aggregator.pages.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/aggregator/aggregator.pages.inc,v
retrieving revision 1.43
diff -u -p -r1.43 aggregator.pages.inc
--- modules/aggregator/aggregator.pages.inc	3 Aug 2010 02:02:01 -0000	1.43
+++ modules/aggregator/aggregator.pages.inc	5 Oct 2010 12:40:25 -0000
@@ -268,7 +268,7 @@ function theme_aggregator_categorize_ite
  * @see aggregator-wrapper.tpl.php
  */
 function template_preprocess_aggregator_wrapper(&$variables) {
-  $variables['pager'] = theme('pager', array('tags' => NULL));
+  $variables['pager'] = theme('pager');
 }
 
 /**
Index: modules/forum/forum.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/forum/forum.module,v
retrieving revision 1.578
diff -u -p -r1.578 forum.module
--- modules/forum/forum.module	3 Oct 2010 00:41:14 -0000	1.578
+++ modules/forum/forum.module	5 Oct 2010 12:42:16 -0000
@@ -1117,7 +1117,7 @@ function template_preprocess_forum_topic
   $variables['topic_id'] = $variables['tid'];
   unset($variables['tid']);
 
-  $variables['pager'] = theme('pager', array('tags' => NULL));
+  $variables['pager'] = theme('pager');
 }
 
 /**
Index: modules/node/node.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/node/node.admin.inc,v
retrieving revision 1.99
diff -u -p -r1.99 node.admin.inc
--- modules/node/node.admin.inc	17 Sep 2010 14:53:21 -0000	1.99
+++ modules/node/node.admin.inc	5 Oct 2010 12:43:36 -0000
@@ -517,7 +517,7 @@ function node_admin_nodes() {
     );
   }
 
-  $form['pager'] = array('#markup' => theme('pager', array('tags' => NULL)));
+  $form['pager'] = array('#markup' => theme('pager'));
   return $form;
 }
 
Index: modules/poll/poll.pages.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/poll/poll.pages.inc,v
retrieving revision 1.27
diff -u -p -r1.27 poll.pages.inc
--- modules/poll/poll.pages.inc	9 Jan 2010 21:54:01 -0000	1.27
+++ modules/poll/poll.pages.inc	5 Oct 2010 12:44:16 -0000
@@ -42,7 +42,7 @@ function poll_page() {
     $output .= '<li>' . l($node->title, "node/$node->nid") . ' - ' . format_plural($node->votes, '1 vote', '@count votes') . ' - ' . ($node->active ? t('open') : t('closed')) . '</li>';
   }
   $output .= '</ul>';
-  $output .= theme("pager", array('tags' => NULL));
+  $output .= theme('pager');
   return $output;
 }
 
Index: modules/profile/profile.pages.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/profile/profile.pages.inc,v
retrieving revision 1.26
diff -u -p -r1.26 profile.pages.inc
--- modules/profile/profile.pages.inc	17 Aug 2010 13:50:52 -0000	1.26
+++ modules/profile/profile.pages.inc	5 Oct 2010 12:44:42 -0000
@@ -74,7 +74,7 @@ function profile_browse() {
       $content .= theme('profile_listing', array('account' => $account, 'fields' => $profile));
     }
     $output = theme('profile_wrapper', array('content' => $content));
-    $output .= theme('pager', array('tags' => NULL));
+    $output .= theme('pager');
 
     if ($field->type == 'selection' || $field->type == 'list' || $field->type == 'textfield') {
       $title = strtr(check_plain($field->page), array('%value' => drupal_placeholder($value)));
@@ -111,7 +111,7 @@ function profile_browse() {
       $content .= theme('profile_listing', array('account' => $account, 'fields' => $profile));
     }
     $output = theme('profile_wrapper', array('content' => $content));
-    $output .= theme('pager', array('tags' => NULL));
+    $output .= theme('pager');
 
     drupal_set_title(t('User list'));
     return $output;
Index: modules/simpletest/tests/theme.test
===================================================================
RCS file: /cvs/drupal/drupal/modules/simpletest/tests/theme.test,v
retrieving revision 1.21
diff -u -p -r1.21 theme.test
--- modules/simpletest/tests/theme.test	3 Oct 2010 05:11:16 -0000	1.21
+++ modules/simpletest/tests/theme.test	5 Oct 2010 12:45:37 -0000
@@ -182,7 +182,7 @@ class ThemeItemListUnitTest extends Drup
 </ul></div></li>
 <li class="last">e</li>
 </ul></div>';
-    $output = theme('item_list', array('items' => $items, 'type' => 'ul', 'title' => NULL, 'attributes' => array()));
+    $output = theme('item_list', array('items' => $items));
     $this->assertIdentical($expected, $output, 'Nested list is rendered correctly.');
   }
 }
Index: modules/system/system.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.admin.inc,v
retrieving revision 1.315
diff -u -p -r1.315 system.admin.inc
--- modules/system/system.admin.inc	5 Oct 2010 00:31:18 -0000	1.315
+++ modules/system/system.admin.inc	5 Oct 2010 12:46:28 -0000
@@ -2902,7 +2902,7 @@ function system_actions_manage() {
   }
 
   if ($row) {
-    $pager = theme('pager', array('tags' => NULL));
+    $pager = theme('pager');
     if (!empty($pager)) {
       $row[] = array(array('data' => $pager, 'colspan' => '3'));
     }
Index: modules/system/system.install
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.install,v
retrieving revision 1.513
diff -u -p -r1.513 system.install
--- modules/system/system.install	5 Oct 2010 00:31:19 -0000	1.513
+++ modules/system/system.install	5 Oct 2010 12:46:53 -0000
@@ -128,10 +128,7 @@ function system_requirements($phase) {
       '@system_requirements' => 'http://drupal.org/requirements',
     ));
 
-    $description .= theme('item_list',  array(
-      'type' => 'ul',
-      'items' => $missing_extensions,
-    ));
+    $description .= theme('item_list', array('items' => $missing_extensions));
 
     $requirements['php_extensions']['value'] = $t('Disabled');
     $requirements['php_extensions']['severity'] = REQUIREMENT_ERROR;
Index: modules/taxonomy/taxonomy.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/taxonomy/taxonomy.admin.inc,v
retrieving revision 1.110
diff -u -p -r1.110 taxonomy.admin.inc
--- modules/taxonomy/taxonomy.admin.inc	28 Sep 2010 03:30:37 -0000	1.110
+++ modules/taxonomy/taxonomy.admin.inc	5 Oct 2010 12:47:24 -0000
@@ -633,7 +633,7 @@ function theme_taxonomy_overview_terms($
   $header = array(t('Name'), t('Weight'), t('Operations'));
   $output = theme('table', array('header' => $header, 'rows' => $rows, 'attributes' => array('id' => 'taxonomy')));
   $output .= drupal_render_children($form);
-  $output .= theme('pager', array('tags' => NULL));
+  $output .= theme('pager');
 
   return $output;
 }
Index: modules/taxonomy/taxonomy.pages.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/taxonomy/taxonomy.pages.inc,v
retrieving revision 1.54
diff -u -p -r1.54 taxonomy.pages.inc
--- modules/taxonomy/taxonomy.pages.inc	24 Sep 2010 00:37:44 -0000	1.54
+++ modules/taxonomy/taxonomy.pages.inc	5 Oct 2010 12:47:32 -0000
@@ -45,7 +45,7 @@ function taxonomy_term_page($term) {
     $nodes = node_load_multiple($nids);
     $build += node_view_multiple($nodes);
     $build['pager'] = array(
-      '#markup' => theme('pager', array('tags' => NULL)),
+      '#markup' => theme('pager'),
       '#weight' => 5,
      );
   }
Index: modules/user/user.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/user/user.admin.inc,v
retrieving revision 1.118
diff -u -p -r1.118 user.admin.inc
--- modules/user/user.admin.inc	17 Sep 2010 14:53:22 -0000	1.118
+++ modules/user/user.admin.inc	5 Oct 2010 12:48:01 -0000
@@ -221,7 +221,7 @@ function user_admin_account() {
     '#options' => $options,
     '#empty' => t('No people available.'),
   );
-  $form['pager'] = array('#markup' => theme('pager', array('tags' => NULL)));
+  $form['pager'] = array('#markup' => theme('pager'));
 
   return $form;
 }