The "hacking" package used in most OpenStack repos pulls in
additional pep8 rules. This commit should fix all of them
other than a hand full in the build.py file which will
be fixed in a separate commit
Change-Id: I40a0a30d338592ad64123e3da5523b9ad95a7a9c
Partially-Implements: blueprint enable-flake8
30a1988f0a