Merge "Fix misleading error message about failed dhcp notifications"

diff --cc neutron/tests/base.py
index 26c166e16c77562d440206f7dd57a8f31789df00,218305137d30f0ec5afcab26632a72d155a6e979..ccdf0fc6bb0304ebbafa15b566d9e4d32a5b1581
--- 1/neutron/tests/base.py
--- 2/neutron/tests/base.py
+++ b/neutron/tests/base.py
@@@ -27,9 -27,8 +27,10 @@@ import moc
  from oslo.config import cfg
  import testtools
  
+ from neutron.common import constants as const
  from neutron import manager
 +from neutron.openstack.common.notifier import api as notifier_api
 +from neutron.openstack.common.notifier import test_notifier
  from neutron.tests import post_mortem_debug