coreos/coreos-overlay — pull request #1000 by marineam (2014-12-11 05:53:56+00:00)
Title: docker: require btrfs-progs >= 3.16.1 for master branch

Current master (future 1.4 release) requires btrfs/version.h which is
only available as-of 3.16.1 and later.

Depends on https://github.com/coreos/portage-stable/pull/155