Provide a way to automatically include the names of reviewers in the merge text.

We'd like to automatically include the names of the reviewers who approved a pull request in the merge comment. For example, if Bob Parr and Lucius Best approved the pull request, it would be great to have the following lines in the merge text:

Approved-by: Bob Parr (bob@email.com)
Approved-by: Lucius Best (lucius@email.com)

Better: A setting, configurable at the repository level, to include the reviewers in the merge text. Ideally, this would be pre-populated in the merge dialog's edit text and have some form of template to enable customization in formatting.

Good: Add API support (java, not REST) to enable developers to do this. Currently, it does not appear that there is a way to add/modify the UI of the merge dialog.