Address comments regarding test hook scripts
Address comments regarding test hook scripts

Address un-resolved comments from patch:
https://review.openstack.org/#/c/255797/4/kuryr/tests/contrib/post_test_hook.sh

implements blueprint: fullstack-testing

Change-Id: Ieb89c5930fde95be74d4f5cb7e353a81e42faa36

openstack/kuryr,midonet/kuryr,celebdor/kuryr-libnetwork,midonet/kuryr,celebdor/kuryr,midonet/kuryr,openstack/kuryr,celebdor/kuryr-libnetwork,celebdor/kuryr-libnetwork,celebdor/kuryr