reqcheck: fix delorean branches support with repositories cloned with rdopkg
reqcheck: fix delorean branches support with repositories cloned with rdopkg

Change-Id: I0e945b520207c006d95abfbacc094c53cddbcb8b

openstack-packages/rdopkg,openstack-packages/rdopkg,redhat-openstack/rdopkg,redhat-openstack/rdopkg