asciidoctor/asciidoctor-backends — pull request #99 by jirutka (2014-10-25 18:37:05+00:00)
Title: Fix html5/block_listing – don't resolve fallback lang from :language

Reflects commit [e481079](https://github.com/asciidoctor/asciidoctor/commit/e481079fad10154078182a7e0f5e7482c48947a6) in the core.