hg: jdk/hs: 8153945: Track if log configuration has changed during runtime

[marcus.larsson at oracle.com]

Changeset: fde9b3c56de4
Author:    mlarsson
Date:      2018-02-28 10:37 +0100
URL:       http://hg.openjdk.java.net/jdk/hs/rev/fde9b3c56de4

8153945: Track if log configuration has changed during runtime
Reviewed-by: lfoltan, hseigel

! src/hotspot/share/logging/logConfiguration.cpp
! src/hotspot/share/logging/logOutput.hpp
! test/hotspot/gtest/logging/test_logConfiguration.cpp