pipeline: fix format error in logging
pipeline: fix format error in logging

Change-Id: I6f5f7524a7cc34d116b40c2f1bba0c2b8417706d
Signed-off-by: Julien Danjou <5c682c2d1ec4073e277f9ba9f4bdf07e5794dabe@danjou.info>

luogangyi/Ceilometer-oVirt,redhat-openstack/ceilometer,tanglei528/ceilometer,Juniper/ceilometer,fabian4/ceilometer,idegtiarov/ceilometer,openstack/ceilometer,isyippee/ceilometer,pczerkas/aodh,NeCTAR-RC/ceilometer,NeCTAR-RC/ceilometer,JioCloud/ceilometer,chungg/aodh,froyobin/ceilometer,openstack/ceilometer,MisterPup/Ceilometer-Juno-Extension,pczerkas/aodh,MisterPup/Ceilometer-Juno-Extension,rackerlabs/instrumented-ceilometer,rickerc/ceilometer_audit,dreamhost/ceilometer,idegtiarov/ceilometer,mathslinux/ceilometer,r-mibu/ceilometer,rickerc/ceilometer_audit,tanglei528/ceilometer,dreamhost/ceilometer,shootstar/ctest,citrix-openstack-build/ceilometer,m1093782566/openstack_org_ceilometer,eayunstack/ceilometer,sileht/aodh,cernops/ceilometer,ityaptin/ceilometer,shootstar/ctest,fabian4/ceilometer,Juniper/ceilometer,rackerlabs/instrumented-ceilometer,redhat-openstack/ceilometer,maestro-hybrid-cloud/ceilometer,ityaptin/ceilometer,JioCloud/ceilometer,m1093782566/openstack_org_ceilometer,luogangyi/Ceilometer-oVirt,rackerlabs/instrumented-ceilometer,eayunstack/ceilometer,r-mibu/ceilometer,openstack/aodh,pkilambi/ceilometer,pkilambi/ceilometer,froyobin/ceilometer,citrix-openstack-build/ceilometer,citrix-openstack-build/ceilometer,rickerc/ceilometer_audit,isyippee/ceilometer,NeCTAR-RC/ceilometer,cernops/ceilometer,mathslinux/ceilometer,tanglei528/ceilometer,JioCloud/ceilometer,maestro-hybrid-cloud/ceilometer,chungg/aodh,sileht/aodh,openstack/aodh