Fix a few typos related to localization
Summary: Part of this is follow-up to D26546. Part of it is longstanding.
Test Plan: Read the code.
Reviewers: O1 Blessed Committers, aklapper
Reviewed By: O1 Blessed Committers, aklapper
Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Differential Revision: https://we.phorge.it/D26588