Index: modules/system/system.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.admin.inc,v
retrieving revision 1.197
diff -u -p -r1.197 system.admin.inc
--- modules/system/system.admin.inc	26 Aug 2009 10:53:45 -0000	1.197
+++ modules/system/system.admin.inc	5 Sep 2009 14:45:53 -0000
@@ -1358,11 +1358,12 @@ function system_site_information_setting
 function system_logging_settings() {
   $form['error_level'] = array(
     '#type' => 'radios',
-    '#title' => t('Display PHP messages'),
+    '#title' => t('Error messages to display'),
     '#default_value' => ERROR_REPORTING_DISPLAY_ALL,
     '#options' => array(
       ERROR_REPORTING_HIDE => t('None'),
       ERROR_REPORTING_DISPLAY_SOME => t('Errors and warnings'),
       ERROR_REPORTING_DISPLAY_ALL => t('All messages'),
     ),
+    '#description' => t('Specify which errors are displayed on the screen. Sites running in a production environment are recommended not to display any errors, but they may be helpful in a development or testing environment.'),
   );

   return system_settings_form($form);