Change openstack-dev to openstack-discuss

Mailinglists have been updated. Openstack-discuss replaces openstack-dev.

Change-Id: I0d6c03b871014ab3f260fa23e20da8cbfdbdcc75

setup.cfg

@@ -3,7 +3,7 @@ name = python-dracclient
 summary = Library for managing machines with Dell iDRAC cards
 description-file = README.rst
 maintainer = DracClient Team
-maintainer_email = openstack-dev@lists.openstack.org
+author-email = openstack-discuss@lists.openstack.org
 home-page = https://launchpad.net/python-dracclient
 license = Apache-2
 classifier =