Index: modules/user/user.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/user/user.module,v
retrieving revision 1.1073
diff -u -p -r1.1073 user.module
--- modules/user/user.module	23 Oct 2009 22:24:19 -0000	1.1073
+++ modules/user/user.module	28 Oct 2009 05:37:43 -0000
@@ -721,7 +721,7 @@ function user_permission() {
     ),
     'administer users' => array(
       'title' => t('Administer users'),
-      'description' => t('Manage or block users, and manage their role assignments.'),
+      'description' => t('Manage or block users, and manage their role assignments. %warning', array('%warning' => t('Warning: Give to trusted roles only; this permission has security implications.'))),
     ),
     'access user profiles' => array(
       'title' => t('Access user profiles'),