Updated openstack/openstack
Project: openstack/pycadf  db8a91fe1316b8e843ee7360451b24b6c06de1c7

sync oslo

this patch also corrects an issue where we incorrectly referenced
common._i18n

this patch syncs to: Ia1820495a989f4f84530ab83f2d87d53a9f761df

Change-Id: Ia192869d7e92732000b9033b09b97316ba5d5028