rPc4f88847ef98

Fix typos in Harbormaster

Summary: See https://phabricator.wikimedia.org/T381897 and https://phabricator.wikimedia.org/T381896

Test Plan: Read the code

Reviewers: O1 Blessed Committers, speck

Reviewed By: O1 Blessed Committers, speck

Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno

Differential Revision: https://we.phorge.it/D25852