SimonSapin/cssselect — pull request #30 by redapple (2013-09-14 20:17:18+00:00)
Title: Remove XPath string() conversion of element in CSS "contains" function translation

According to http://www.w3.org/TR/xpath/#section-Function-Calls (and in practice using `lxml`), each argument is "convert[ed] (...) to the type required by the function,".

So, the `string(.)` conversion on the context node is redundant.
Very minor, and probably only cosmetic.