Minor: Rephrase a comment to prevent WordFence incorrectly reporting the file as "infected". 

Apparently, "format.is" is a malicious site and WordFence uses naive substring matching which makes it think "format.is_normalized" is a link to that site.

git-svn-id: https://plugins.svn.wordpress.org/admin-menu-editor/trunk@840226 b8457f37-d9ea-0310-8a92-e5e31aec5664