URLs are not being displayed properly in custom menu

Great Simoami.

I just commented it:

//$nav_menu = str_replace(
//              $args->container_class . '"',
//                $args->container_class . '"' . enlightenment_extra_atts( $atts ),
//                $nav_menu
//        );

Seems my site is working fine without $nav_menu = str_replace function.

Regards
Rafael