R1:c4586664b344

Apply some linter auto-fixes

Summary: A few minor fixes, applied by `arc lint --everything --apply-patches`.

Test Plan: N/A

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D10120