hg: jdk/jdk: 8234742: Improve handshake logging

[robbin.ehn at oracle.com]

Changeset: c2ce3849c62f
Author:    rehn
Date:      2019-12-04 11:57 +0100
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/c2ce3849c62f

8234742: Improve handshake logging
Reviewed-by: dholmes, pchilanomate

! src/hotspot/share/runtime/handshake.cpp
! src/hotspot/share/runtime/handshake.hpp
! src/hotspot/share/runtime/thread.hpp