Change ignore-errors to ignore_errors
Change ignore-errors to ignore_errors

Needed for coverage 4.0

Change-Id: I219e613e3407398730811827a07991ee2045b513

openstack/networking-odl,flavio-fernandes/networking-odl,flavio-fernandes/networking-odl,FedericoRessi/networking-odl,openstack/networking-odl,FedericoRessi/networking-odl,openstack/networking-odl