Local portfile masks portfile in main repository

[Ryan Schmidt]

By design, if you have a local portfile for a port, then that will be used, instead of any identically-named port in the main port repository. Some users may have forgotten that they have a local portfile, which can result in a problem, as in this situation where the user's local port was older than the official version:

https://trac.macports.org/ticket/29132#comment:2

This user suggests we should print a message in this case. Can anyone think of a way to do that, and any ideas about what the message should say?