Fix error when there's no writeable addressbook source (#1489162)

Aleksander Machniak

2013-06-11 ae80b5a309be69a47b438e2dc1e342735b5e22aa

 program/steps/mail/viewsource.inc

@@ -44,7 +44,7 @@
    header("Content-Disposition: attachment; filename=\"$filename\"");
  }

  $RCMAIL->storage->print_raw_body($uid);
  $RCMAIL->storage->print_raw_body($uid, empty($_GET['_save']));
}
else
{