R1:2a2b47326c81

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