=== modified file 'includes/bootstrap.inc'
--- includes/bootstrap.inc	2007-01-29 19:25:19 +0000
+++ includes/bootstrap.inc	2007-03-13 10:51:13 +0000
@@ -663,6 +663,11 @@ function drupal_set_message($message = N
       $_SESSION['messages'][$type] = array();
     }
 
+    foreach (module_implements('message_alter') as $module) {
+      $function = $module .'_message_alter';
+      $function($message);
+    }
+
     $_SESSION['messages'][$type][] = $message;
   }