Perform notice check as part of the `make verify` stage
This is part 1 of https://gitlab.com/gitlab-org/gitaly/merge_requests/188 broken up into smaller merge requests
This MR means that we can add the notice check as part of our verify stage, and also means that we can run it when your working copy has unstaged changes (currently not possible).
Having it as part of the verify stage means that make verify
will perform all precommit checks in one go.
Edited by Andrew Newdigate