Comment 8 for bug 1214476

Reviewed: https://review.openstack.org/43243
Committed: http://github.com/openstack/keystone/commit/db54cf373d1a0b529cbb0790ad9dd72bb6e7700b
Submitter: Jenkins
Branch: master

commit db54cf373d1a0b529cbb0790ad9dd72bb6e7700b
Author: Zhenguo Niu <email address hidden>
Date: Thu Aug 22 13:24:03 2013 +0800

    Use system locale when Accept-Language header is not provided

    Remove en_US as the default language when no header is provided, and use
    None instead. Upon translation None will be defaulted to system as it
    was before the translation changes.

    Fixes bug: #1214476

    Change-Id: Ice7f55912a7bd6c727a7f8a2a1172871fe27a3dc