scrooloose/syntastic — pull request #432 by tomjakubowski (2012-12-24 10:34:12+00:00)
Title: Ignore tidy warning about <input> tags with type="search"

This is valid html5:

http://www.w3.org/TR/html-markup/input.search.html

There are several other HTML5 input types which may not pass tidy, this one particularly bugged me though.