Index: modules/system/system.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.module,v
retrieving revision 1.980
diff -u -p -r1.980 system.module
--- modules/system/system.module	13 Oct 2010 17:09:00 -0000	1.980
+++ modules/system/system.module	15 Oct 2010 12:44:27 -0000
@@ -3854,6 +3854,9 @@ function system_admin_paths() {
     'admin' => TRUE,
     'admin/*' => TRUE,
     'batch' => TRUE,
+    // This page should not be treated as administrative since it outputs its
+    // own content (outside of any administration theme).
+    'admin/reports/status/php' => FALSE,
   );
   return $paths;
 }