Summary: A pull from GitHub recently added `mysql.port`, for explicitly configuring the MySQL port. See: - https://github.com/facebook/libphutil/pull/27 - https://github.com/facebook/phabricator/pull/356 Add a setup warning for old-style configurations (which will still work properly), to get them to move to the new style. Test Plan: {F50113} Reviewers: btrahan, chad Reviewed By: chad CC: aran Differential Revision: https://secure.phabricator.com/D6449