Updated openstack/openstack
Project: openstack/trove  7aedda8d8dc8bb486adc8b1778d4eca9784cdf14
null
Fixed backup unittests to use mocked cmd

The backup unittests were using the actual cmd from the backup
implementation (eg. innobackupex) instead of the faked unit test
cmd. Fixed this so that calls to innobackupex are no longer being
made when running the unit tests.

Closes-bug: 1290290
Change-Id: I26b77efbf95feb5a32777197c7cba08f7b757c38