Updated openstack/openstack
Project: openstack/requirements  863ee8d64e843a3ee8bfa1c2679f2a9d2f0cfb61

Add flake8 2.2.4

Flake8 2.2.4 Fix bugs triggered by turning multiprocessing on by default.

The move to flake8 2.2.4 is done in two steps since our
global-requirements system does not allow non-overlapping changes.

Change-Id: Ifb1c91ccfac7dd71ef0641f3a8660b4e492ecfa4