tests: add b'' when testing for tls1.2
The dict keys are bytes. The test was always failing due to
looking for a str key.
skip-blame: just b'' prefix
Differential Revision: https://phab.mercurial-scm.org/D5701
wireprotov2peer: make "received frame(...)" messages debug level
We don't need to show these during --verbose, it's more of a
debugging thing.
Differential Revision: https://phab.mercurial-scm.org/D5700
tests: add optional setsockopt() output on Python 3
Tests still don't pass. But this gets us a little closer.
Differential Revision: https://phab.mercurial-scm.org/D5699