Remove ambiguity from hlen.  IPv4 is now indicated by is_ipv4 and we need a proper hlen value for IPv6 to implement O_REJECT and O_LOG.
Remove ambiguity from hlen.  IPv4 is now indicated by is_ipv4 and we need a
proper hlen value for IPv6 to implement O_REJECT and O_LOG.

Reviewed by:	glebius, brooks, gnn
Approved by:	re (scottl)

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