Some clean up of code I'm preparing to modify

This patch has a few benign changes that should be easily reviewed.
The purpose of this patch is to allow me to make cleaner edits in
follow on patches so that they're more easily reviewed in their
specific contexts.

Change-Id: Ia3dd49c7b39f9ca07d5bb117972d934813c0cd67
Merge "Some clean up of code I'm preparing to modify"
Merge branch 'master' of https://github.com/openstack/quantum