Index: includes/common.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/common.inc,v
retrieving revision 1.611.2.24
diff -u -p -r1.611.2.24 common.inc
--- includes/common.inc	13 May 2009 17:10:36 -0000	1.611.2.24
+++ includes/common.inc	30 Aug 2009 01:05:47 -0000
@@ -881,7 +881,8 @@ function t($string, $args = 0) {
  * @param $mail
  *   A string containing an e-mail address.
  * @return
- *   TRUE if the address is in a valid format.
+ *   1 if the address is in a valid format,
+ *   0 if the address is in a invalid format.
  */
 function valid_email_address($mail) {
   $user = '[a-zA-Z0-9_\-\.\+\^!#\$%&*+\/\=\?\`\|\{\}~\']+';