Plugin 1.7 uses deprecated function clean_url()

In function post_updated(..) the deprecated function clean_url() is used to get permalink and edit-link.

This causes a PHP Notice like Notice: clean_url() has been deprecated... if WP_DEBUG is enabled.

Suggested fix: Replace clean_url() with esc_url()

http://codex.ww.wp.xz.cn/Function_Reference/clean_url
http://codex.ww.wp.xz.cn/Function_Reference/esc_url

http://ww.wp.xz.cn/plugins/email-post-changes/