puppetlabs/puppetlabs-firewall — pull request #391 by xbezdick (2014-07-21 14:46:39+00:00)
Title: Extend support for all RHEL clones.

There isn't much fedora clones than there is of RHEL, it's beeter
to just check if we aren't Fedora than listing all RHEL clones.
Also operatingsystemmajrelease is required as CentOS changed versioning.