Summary: Ref T4068. Adds a command to list all commits in an "importing" status. This will allow users to use `reparse.php` to diagnose and repair issues.
Test Plan:
- Ran `bin/repository importing P`, etc.
- Used `reparse.php` to reparse some commit stages and saw status update correctly.
- Ran on a repo with no importing commits.
- Ran with `... --simple | xargs`, which saves us having to put an `awk` or something in there for users.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4068
Differential Revision: https://secure.phabricator.com/D7515
bd29784a32