Fix a translation ("to ignore these changes...")
Summary: Fixes T8374.
Test Plan:
$ arc diff You have untracked files in this working copy. Working copy: /Users/epriestley/dev/core/lib/arcanist/ Untracked changes in working copy: (To ignore this change, add it to ".git/info/exclude".) derp Ignore this untracked file and continue? [y/N] ^C
Reviewers: btrahan, joshuaspence, chad
Reviewed By: chad
Subscribers: epriestley
Maniphest Tasks: T8374
Differential Revision: https://secure.phabricator.com/D13096