mxcl/homebrew — pull request #17969 by petere (2013-02-20 13:12:54+00:00)
Title: docbook: Update docbook-xsl and docbook-xsl-ns

This is a normal version upgrade of the docbook-xsl stylesheets.

But I'm not sure how this is really supposed to work. Just running `brew upgrade docbook` says that docbook is already at version 5.0. Uninstalling and reinstalling works, however.