Comment 10 for bug 1322945

Reviewed: https://review.openstack.org/95902
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=77046d0d889a8bff095083ae80a2accd0e25406b
Submitter: Jenkins
Branch: master

commit 77046d0d889a8bff095083ae80a2accd0e25406b
Author: Aaron Rosen <email address hidden>
Date: Tue May 27 13:39:39 2014 -0700

    Make linux.utils.execute log error on return codes

    Previously, the execute method in neutron logs everything as debug which hides
    a lot of extremely fatal errors like unable to apply security group rules!
    This patch changes this code so that we log all non 0 returns as error.

    Change-Id: I7328e62269212ccd9c7950ff064a3e337de56918
    Closes-bug: 1323832
    Related-bug: 1322945