Hacking package usages of subprocess should be marked as nosec for bandit

[Michael McCune]

The sahara.utils.hacking package is used for testing, as such the usages of subprocess within it should be marked as nosec according to the bandit documentation[1].

Steps to reproduce:
1. run `tox -ebandit` from the root of project
2. examine error output for usages of subprocess in the sahara.utils.hacking.* modules

[1]: https://github.com/openstack/bandit/blob/master/README.rst#exclusions

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/287591

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/287591
Committed: https://git.openstack.org/cgit/openstack/sahara/commit/?id=d0c435168556dec69941c4b52d702ea46eb92e28
Submitter: Jenkins
Branch: master

commit d0c435168556dec69941c4b52d702ea46eb92e28
Author: Tin Lam <email address hidden>
Date: Wed Mar 2 23:17:49 2016 -0600

    Added #nosec to sahara.utils.hacking package

    The sahara.utils.hacking package is used for testing, as such the
    usages of subprocess within it should be marked as nosec according
    to the bandit documentation.

    Change-Id: If9299b050b9b158a78ab90b63afd94a5d4cbbf2c
    Closes-Bug: #1552468

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/sahara 4.0.0.0rc1 release candidate.