iptables: on revision mismatch, do not call print/save

Between revisions, the layout of xtables data may change completely.
Do not interpret the data in a revision M with a module of revision N.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2 files changed