Partial sync with OpenStack requirements.

Where we're using the same libraries as OpenStack, sync with the
OpenStack versions. Just to be nice.

Change-Id: I8e90d2a8945d62e962b813c6396f0e7db4e14222
diff --git a/setup.py b/setup.py
index c0a24ea..70c2b3f 100644
--- a/setup.py
+++ b/setup.py
@@ -14,6 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
 import setuptools
 
 setuptools.setup(