[Deprecated code] Usage of user levels by plugins

Hi

Installed today this plugin over WP 3.4.2 and I’m getting the following notice debug message:
Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in …/wp-includes/functions.php on line 2722

http://ww.wp.xz.cn/extend/plugins/simple-301-redirects/