Fix two minor formatting issues with bin/repository move-paths

Summary: This gets over-escaped instead of bolded right now, but I only ever hit it when exporting/importing and never both cleaning it up.

Test Plan: Ran bin/repository move-paths, saw bolded "Move" instead of ANSI escape sequences.

Reviewers: chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D15797