https://github.com/tanoku/redcarpet isn't available anymore According to http://rubygems.org/gems/redcarpet this is the new gh homepage: https://github.com/vmg/redcarpet
+ 10 Dec 2012; Sergey Popov <pinkbyte@gentoo.org> redcarpet-2.1.1.ebuild, + redcarpet-2.2.2.ebuild: + Change HOMEPAGE, wrt bug #446674. Thanks to Manuel Rüger for discovering + this issue