Show neutron API request body with debug enabled

Shows the contents of update and create requests
to the neutron API when debugging is enabled.

Closes-Bug: #982504
Change-Id: I90680721aee9efbcb01779cdfacc86b90b37bf8f

neutron/api/v2/base.py

@@ -551,6 +551,7 @@ class Controller(object):
         if not body:
             raise webob.exc.HTTPBadRequest(_("Resource body required"))
 
+        LOG.debug(_("Request body: %(body)s"), {'body': body})
         prep_req_body = lambda x: Controller.prepare_request_body(
             context,
             x if resource in x else {resource: x},