Memory leak in crypto_write_public_key_to_string() with OpenSSL master
The expensive-hardening version of the tests had a memory leak when we were encoding public keys. The fix is easy -- I don't know why we programmed it the way we did in the first place.
Found on https://jenkins.torproject.org/job/tor-ci-linux-master-expensive-hardening/ARCHITECTURE=amd64,SUITE=sid/425/consoleFull -- so is that openssl 1.1 too?