Corrected Type Typo

functions/mime.php

@@ -603,7 +603,7 @@ function buildAttachmentArray($message, $exclude_id, $mailbox, $id) {
            arguments themselves. */
         $temp = array(&$links, &$startMessage, &$id, &$urlMailbox, &$ent,
                     &$defaultlink, &$display_filename, &$where, &$what,
-                    $type0, $temp1);
+                    $type0, $type1);
         do_hook("attachment $type0/$type1", $temp);
         /* The API for this hook has changed as of 1.5.2 so that all plugin
            arguments are passed in an array instead of each their own plugin