Updated openstack/openstack
Project: openstack/oslo.messaging  a9ce3529dec2aed34466015910e4a8011a49cf74

Replace lambda method _

Instead of the lambda method _ the method should be imported
from oslo.messaging.openstack.common.gettextutils.

Change-Id: I373337cc1227b0d7b7bf93603b53a64de83721a9