This change halves the number of DNS queries requires to lookup DNSLink
information for "example.com" by forcing the use of a FQDN.

* example.com
* example.com.local (removed)
* _dnslink.example.com
* _dnslink.example.com.local (removed)

Where .local is the local system's organization/domain name.

License: MIT
Signed-off-by: Daniel Aleksandersen <code@daniel.priv.no>