hg: amber/amber: Automatic merge with default

[maurizio.cimadamore at oracle.com]

Changeset: 008acc7630f5
Author:    langtools
Date:      2017-03-30 21:25 +0200
URL:       http://hg.openjdk.java.net/amber/amber/rev/008acc7630f5

Automatic merge with default

- common/bin/shell-tracer.sh