Comment 5 for bug 991360

As far as I can tell, fqdn.fqdn doesn't seem to be problematic to set as based on a quick read of the RFC, it's not actually required for it to be an actual fqdn (gethostname() will only return the hostname, not the fqdn).

So until such time that we get a getfqdn() (retuning hostname -f), I'm going to go with setting it for both ipv4 and ipv6 to the value of gethostname().