puppetlabs/facter — pull request #582 by jhoblitt (2013-12-19 15:19:58+00:00)
Title: (maint) restrict redcarpet gem to <= 2.3.0

Per the tag annotation from the redcarpet 3.0.0 release, 2.3.0 is the last
version compatible with ruby 1.8.7.

https://github.com/vmg/redcarpet/releases/tag/v3.0.0