Fix test failures with OpenSSL 1.1 and later. The MockHTTPinC server must
also disable TLSv1.3 if the OpenSSL library enables it by default.

* test/MockHTTPinC/MockHTTP.h (mhSSLProtocol_t): Add mhProtoTLSv13.
* test/MockHTTPinC/MockHTTP_server.c
  (initSSLCtx): Handle TLSv1.3 in the context if OpenSSL supports it.
  (sslHandshake): Remove the quite useless printf() "fix".


git-svn-id: https://svn.apache.org/repos/asf/serf/trunk@1844837 13f79535-47bb-0310-9956-ffa450edef68
2 files changed