tls: allow enabling the TLS debug trace
Enable the same trace output that the OpenSSL s_client and s_server
support with their `-trace` option. This is invaluable when debugging
reports of TLS bugs as well as when debugging the internal TLS
implementation.
See:
- https://github.com/nodejs/node/issues/25383
- https://github.com/nodejs/node/issues/17936
- https://github.com/postmanlabs/postman-app-support/issues/5918#issuecomment-465311423
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines