Enumerate ignored flake8 rules
Enumerate ignored flake8 rules

We were previously ignoring all F* and H* rules; this patch specifically
identifies them so that we can eliminate them one by one, without
introducing regressions along the way.

Change-Id: Iaf9ee17acf44aba1c93c1af50c84bd8216544b89

sileht/keystoneauth,jamielennox/keystoneauth,citrix-openstack-build/keystoneauth