Add the exception string when a osc command fails to load
Add the exception string when a osc command fails to load

Change-Id: Ifbd9bc9246fb18b1203d6adaf96c7ece3b8a2b04

Tesora/tesora-project-config,Tesora/tesora-project-config,openstack-infra/project-config,openstack-infra/project-config