[e] (0) typo in :matches() argument
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=27193
Affected topics: Rendering

git-svn-id: https://svn.whatwg.org/webapps@8844 340c8d12-0b0e-0410-8428-c7bf67bfef74