Update spelling data

Summary: Update `ArcanistSpellingDefaultData` with data from the [[http://anonscm.debian.org/gitweb/?p=lintian/lintian.git;a=blob_plain;f=data/spelling/corrections;hb=4b3fc40babff01874b54718406b77b7f3052d26a | original source]].

Test Plan: Visual inspection.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9790