Whether the name in the DNS record should be brisbane or brisbane._domainkey or brisbane._domainkey.example.org depends entirely on the most recent $ORIGIN line in the master file. If the $ORIGIN is _domainkey.example.org, an entirely plausible scenario, the current text is correct.
I see no reason to change it, suggest closing the ticket. R's, John _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html