no-auth and no-auth-recursive which suppress
adding the NS records to the authority section
as well as the associated address records for the
nameservers. [RT #42005]
(cherry picked from commit 78e31dd187)
4371. [func] New "minimal-any" option reduces the size of UDP
responses for qtype ANY by returning a single
arbitrarily selected RRset instead of all RRsets.
Thanks to Tony Finch. [RT #41615]