BUG/MINOR: ssl: empty connections reported as errors.

Empty connection is reported as handshake error
even if dont-log-null is specified.

This bug affect is a regression du to:

BUILD: ssl: fix to build (again) with boringssl

New openssl 1.1.1 defines OPENSSL_NO_HEARTBEATS as boring ssl
so the test was replaced by OPENSSL_IS_BORINGSSL

This fix should be backported on 1.8
1 file changed