Motivated by trimming the package set of minimal to be smaller
to match its name.
But more generally, I think the solution most of the time we hit a
"multiple things have a provides" isn't to hardcode what we want,
but to exclude what we don't want.
Ideally of course...there'd be something like
`ProvidesDisfavored: iptables` that `iptables-legacy` could
use.
Signed-off-by: Colin Walters <walters@verbum.org>