Graylog2/graylog2-cookbook — pull request #1 by ofross (2014-10-13 21:42:13+00:00)
Title: Added support for RHEL in addition to Centos

platform_family is more inclusive, and covers RHEL in addition to Centos, etc.

https://docs.getchef.com/dsl_recipe_method_platform_family.html