h5bp/html5-boilerplate — pull request #1372 by clanceyp (2013-06-03 13:05:58+00:00)
Title: Tweak to make the basic template better follow WCAG accessibility guidelines 

Minor update to add the missing 'lang' attribute to the html tag.

http://webaim.org/standards/wcag/checklist#sc3.1.1
(http://www.w3.org/TR/WCAG20/#meaning-doc-lang-id)