Change openstack-dev to openstack-discuss

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

Change-Id: I5a24e91540d6e6cb25c230b1917a3036d8373321
diff --git a/setup.cfg b/setup.cfg
index 8b8b674..1a01008 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -4,7 +4,7 @@
 description-file =
     README.rst
 author = OpenStack
-author-email = openstack-dev@lists.openstack.org
+author-email = openstack-discuss@lists.openstack.org
 home-page = http://www.openstack.org/
 classifier =
     Environment :: OpenStack