nft-arp: Use xtables_print_mac_and_mask()

This libxtables function does exactly what the local implementation did.
The only noteworthy difference is that it assumes MAC/mask lengths, but
the local implementation was passed ETH_ALEN in each invocation, so no
practical difference.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
1 file changed