Phabricator's standard tag for code reviews is `Differential Revision:`. In the FreeBSD project we have a variety of existing commit metadata tags like `PR:` for bug reports, `Reviewed by:` for reveiewers, etc, and would like to be able to associate a commit with a code review using a tag in the same scheme.
FreeBSD developers have been using a variety of tags so far -- some examples:
```
CR: https://phabric.freebsd.org/D433
CR: D482
Phabric: D528
Phabric: D525 (part of a larger patch)
Phabric: https://phabric.freebsd.org/D443
Differential Revision: https://phabric.freebsd.org/D521
```
I think we'd like to settle on the `CR:` form. We'd probably use just the `D####` Differential ID, but could use the URL instead.
Would it be feasible to add an option to specify text other than 'Differential Revision'?