Index: modules/system/system.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.admin.inc,v
retrieving revision 1.319
diff -u -p -r1.319 system.admin.inc
--- modules/system/system.admin.inc	13 Oct 2010 13:43:21 -0000	1.319
+++ modules/system/system.admin.inc	14 Oct 2010 07:08:07 -0000
@@ -1346,7 +1346,6 @@ function system_modules_uninstall_submit
  *   use as the default value of the IP address form field.
  */
 function system_ip_blocking($default_ip = '') {
-  $output = '';
   $rows = array();
   $header = array(t('Blocked IP addresses'), t('Operations'));
   $result = db_query('SELECT * FROM {blocked_ips}');