A few new features for `port`

[Joshua Root]

On 2010-11-9 01:26 , Jeremy Lavergne wrote:
>> When you want to see which ports you _could_ remove, that aren't
>> depended on by anything else.
>> There are times when you may have installed a port as a trial and no
>> longer need it to be installed.
>> In this case, it may simply be better to include an option for leaves
>> which doesn't exclude the requested ports (possibly also marking those
>> that were or weren't specifically requested).
> 
> Including the 'requested' versus 'automatically installed' flag into the sqlite db would be very handy at this point.

Huh?
<http://trac.macports.org/browser/branches/release_1_9/base/src/cregistry/sql.c#L115>

- Josh