Log error when fail_on_rc disabled
Log error when fail_on_rc disabled

Change-Id: I93e23e11dffcd2e0f9e33ba816b163de817166f4
Signed-off-by: Bogdan Dobrelya <a2228ae37d00d1cbd5a93e53f3e1e5aef21d5900@redhat.com>

openstack/python-tripleoclient