damemi: Add default logging-format value

JobBuild
490
03-03 14:43
pull-descheduler-test-e2e-k8s-master-1-18 1367123434047279104
pull-descheduler-test-e2e-k8s-master-1-19 1367123434017918976
pull-descheduler-test-e2e-k8s-master-1-20 1367123433988558848
pull-descheduler-unit-test-master-master 1367123433950810112
pull-descheduler-verify-build-master 1367123433925644288
pull-descheduler-verify-master 1367123433887895552