jquery/jquery — pull request #918 by staabm (2012-09-01 09:22:26+00:00)
Title: "a" cannot be falsy at this point

suggested by Morris at
http://blog.jquery.com/2012/08/30/jquery-1-8-1-released/#comment-532914

"a" cannot be falsy at this point, because a.style.cssText is used just a few lines above