On platforms with multibyte sa_family and big endian, the compiled ACLs would not work, as evidenced by #311.
On platforms with multibyte sa_family and big endian, the compiled
ACLs would not work, as evidenced by #311.

Add a log message for unknown sa_families, and use memmove to extract
the sa_family member of the sockaddr into a suitably sized variable.

Diagnosed by:	Mithrandir
Fixes:	#311


git-svn-id: 7d4b18ab7d176792635d6a7a77dd8cbbea8e8daa@3171 d4fa192b-c00b-0410-8231-f00ffab90ce4

ssm/pkg-varnish,wikimedia/operations-debs-varnish,wikimedia/operations-debs-varnish,CartoDB/Varnish-Cache,ssm/pkg-varnish,ssm/pkg-varnish,CartoDB/Varnish-Cache,ssm/pkg-varnish,ssm/pkg-varnish,wikimedia/operations-debs-varnish,wikimedia/operations-debs-varnish,wikimedia/operations-debs-varnish,CartoDB/Varnish-Cache