cgpt: Fix or workaround lint errors

I would like to use the precommit hooks in cgpt.py,
so I fixed the easy lint errors, and defer on the
nontrivial one.

BUG=None
TEST=precommit linter doesn't complain

Change-Id: Ib30ddd3c4ed04975e9d3b166337218094348079c
Reviewed-on: https://chromium-review.googlesource.com/441918
Commit-Ready: Ian Coolidge <icoolidge@google.com>
Tested-by: Ian Coolidge <icoolidge@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed