automatic port clean

[Lawrence Velázquez]

On Jan 20, 2015, at 7:05 AM, René J.V. Bertin <rjvbertin at gmail.com> wrote:

> What's bad about asking for confirmation when that's an option the user has to activate in macports.conf? Heck, the request could even be skipped when doing `port upgrade` so that common workflows continue to flow without intervention.

We should not implement needlessly fine-grained persistent preferences for every possible behavior. I expect that very few users (besides you, apparently) would use this preference.

vq