Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 19069)
+++ wp-includes/functions.php	(working copy)
@@ -2802,7 +2802,7 @@
 		$errors = $message->get_error_messages();
 		switch ( count( $errors ) ) :
 		case 0 :
-			$message = '';
+			return;
 			break;
 		case 1 :
 			$message = "<p>{$errors[0]}</p>";