Fix identity v2.0 entry point

Change-Id: Ifae91a612fcd8b66660b93f6ea81d37e0f1bce1d

Author: Dean Troyer

setup.cfg

@@ -31,7 +31,7 @@ console_scripts =
 
 openstack.cli =
 
-openstack.identity.v3_0 =
+openstack.identity.v2_0 =
     endpoint_create = openstackclient.identity.v2_0.endpoint:CreateEndpoint
     endpoint_delete = openstackclient.identity.v2_0.endpoint:DeleteEndpoint
     endpoint_list = openstackclient.identity.v2_0.endpoint:ListEndpoint