rails/rails — pull request #5787 by frankieroberto (2012-04-09 11:24:00+00:00)
Title: Adding itemscope to list of boolean attributes.

'itemscope' is defined within HTML5 for use in microdata markup. See
http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.ht
ml#attr-itemscope