Comment 5 for bug 1586476

Reviewed: https://review.openstack.org/321913
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=869e117b536b685e45cee161948c78d6241c5df3
Submitter: Jenkins
Branch: master

commit 869e117b536b685e45cee161948c78d6241c5df3
Author: Joshua Harlow <email address hidden>
Date: Wed Jun 8 17:10:08 2016 -0700

    Add non-intrusive ctrl-c handling

    Instead of trying to use a signal handler to stop
    when ctrl-c is triggered use technique that cooperates
    better with the threads that are running and lets
    them die a happy death vs being forced to die in
    unpleasant ways.

    Closes-Bug: #1586476

    Change-Id: I7fdb6a77a144bdd02276cca07b616bbb0c2f1957