- Usabilty improvement as per http://flickr.com/photos/dries/233650181/: replaced duplicate title with 'Site status'.

modules/system/system.module

@@ -816,7 +816,7 @@ function system_site_maintenance_settings() {
 
   $form['site_offline'] = array(
     '#type' => 'radios',
-    '#title' => t('Site maintenance'),
+    '#title' => t('Site status'),
     '#default_value' => variable_get('site_offline', 0),
     '#options' => array(t('Online'), t('Off-line')),
     '#description' => t('When set to "Online", all visitors will be able to browse your site normally. When set to "Off-line", only users with the "administer site configuration" permission will be able to access your site to perform maintenance; all other visitors will see the site off-line message configured below. Authorized users can log in during "Off-line" mode directly via the <a href="@user-login">user login</a> page.', array('@user-login' => url('user'))),