Pull up following revision(s) (requested by knakahara in ticket #627):
sys/netipsec/ipsecif.c: revision 1.5
tests/net/if_ipsec/t_ipsec.sh: revision 1.4
sys/net/if_ipsec.c: revision 1.7
Fix IPv6 ipsecif(4) ATF regression, sorry.
There must *not* be padding between the src sockaddr and the dst sockaddr
after struct sadb_x_policy.

Comment out confusing (and incorrect) code and add comment. Pointed out by maxv@n.o, thanks.

Enhance assertion ipsecif(4) ATF to avoid confusing setkey(8) error message.

When setkey(8) says "syntax error at [-E]", it must mean get_if_ipsec_unique()
failed.

(martin)