implementation is experimental at this time and not recommended
for use on the public internet (the protocol numbers have not
been assigned). Needs recent ldns with --enable-ecdsa.
- fix memory leak in errorcase for DSA signatures.
git-svn-id: https://unbound.nlnetlabs.nl/svn/trunk@2606 be551aaa-1e26-0410-a405-d3ace91eadb9
