Updated openstack/openstack
Project: openstack/django_openstack_auth  c6897e443010df076527e436922fbd3b7f75c508
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Fix whitespace issues found by Pep8 1.5.4+

Pep8 1.5.4+ fixes some bugs in whitespace related checks, so
adjust those in order to pass gating if we upgrade.

Change-Id: I8290c2b4f9b233889c3f151cdd5d8346fce8713e