Fix text lint issues
Summary: Ref T5105. This is a proof-of-concept for D11458.
Test Plan: arc lint --everything
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: Korvin, epriestley
Maniphest Tasks: T5105
Differential Revision: https://secure.phabricator.com/D11642