ansible/ansible — pull request #9012 by mantiz (2014-09-15 21:29:04+00:00)
Title: Fix os_family and distribution facts on archlinux

Since `1.7.0` the facts `os_family` and `distribution` are set to `NA` on Archlinux.
I think this was introduced by https://github.com/ansible/ansible/commit/f4fd9d36.
The file `/etc/arch-release` is empty on arch which is the reason why it is ignored.