hg: jdk9/sandbox/hotspot: Change LogDecorators default behaviour and add clear() function.

[marcus.larsson at oracle.com]

Changeset: 0858427c5a01
Author:    mlarsson
Date:      2015-09-03 16:52 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/hotspot/rev/0858427c5a01

Change LogDecorators default behaviour and add clear() function.

! src/share/vm/logging/logConfiguration.cpp
! src/share/vm/logging/logDecorators.hpp
! src/share/vm/logging/logTagSet.hpp