Code review comment for ~chad.smith/ubuntu/+source/ubuntu-advantage-tools:release-27-impish

Thank you @bryce for the review:
I've already put up a PR for lintian fixes for 2. and 4. for your comment here https://code.launchpad.net/~chad.smith/ubuntu/+source/ubuntu-advantage-tools/+git/ubuntu-advantage-tools/+merge/402459/comments/1061309

This PR should land for inclusion in next release 27.1 which should be scheduled in about a week.

https://github.com/canonical/ubuntu-advantage-client/pull/1628