docker/docker — pull request #8157 by SvenDowideit (2014-09-22 03:35:18+00:00)
Title: Fix for user kicked off after login on some hosts

Docker-DCO-1.1-Signed-off-by: SvenDowideit (github: SvenDowideit)

I didn't need it for my boot2docker, but a debian test system confirmed the need

from https://groups.google.com/forum/#!topic/docker-user/NsCZMrUf-k0