although it could be changed at a later time, to stay similar to
other implementations.
git-svn-id: https://unbound.nlnetlabs.nl/svn/trunk@4560 be551aaa-1e26-0410-a405-d3ace91eadb9
by finding the cname, cname in the existing list, it returns
the partial result with the validation result up to then.
git-svn-id: https://unbound.nlnetlabs.nl/svn/trunk@4547 be551aaa-1e26-0410-a405-d3ace91eadb9