find-all-conflicts gotcha

[Marc Espie <espie@nerim.net>]

find-all-conflicts is showing stuff like this:

@dirrm problems:
---------------
/usr/local/share/apps/kate/syntax: kdebase-2.2.2,kdelibs-3.0rc3

well, there is no explicit conflict between kdebase-2.2.2 and
kdelibs-3.0rc3.


Two solutions:
- add an explicit conflict to kdebase-2.2.2 for kdelibs-3.0rc3 (yuck)
- expand the conflict list in a transitive way, so that packages
will conflict with packages that conflict with dependent packages
(a bit hard to do)


In the meantime, @dirrm problems will show some false positives. Sorry
about that...