Pre-commit script to reject commits

[Rainer Müller]

Blair Zajac wrote:
> If you have the base port installed, say libfoo, but it's not listed as a 
> dependency, then if you remove it, then you'll unintentionally break any ports 
> that picked up a dependency upon it at configure time.

Thanks for the clarification, I think you are kind of right. But it will 
always hit someone not affected by the update. For example, changing 
depends_* inside some variants and incrementing the revsion forces all 
users to recompile - even if they don't use this variant...

As an additional comment, I don't think port lint is yet stable enough 
to be used as a commit filter (rejecting commits not passing port lint).

Rainer