Comment 9 for bug 1625135

Reviewed: https://review.openstack.org/374936
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=5831c4662026e39dc9d74babb484d02744e2faf7
Submitter: Jenkins
Branch: stable/newton

commit 5831c4662026e39dc9d74babb484d02744e2faf7
Author: Armando Migliaccio <email address hidden>
Date: Mon Sep 19 13:27:30 2016 -0700

    Ensure trunk status is acknowledged during OVS subport operations

    Before this patch, change to trunk status was reported only when
    subports were being added, but not when being removed. This patch
    tweak things to make sure the same happens on subports removal.

    This patch also improves unit coverage for the parts of the code
    affected. In particular the import of oslo_context has been aliased
    to catch errors where context as variable is shadowed by the homonym
    module.

    Closes-bug: #1625135

    Change-Id: I73127d7829c31ca66578eb8f7d76409b36c9dc6d
    (cherry picked from commit 4371ae010a7888220bb67ca9bd423e54c0239fd4)