Tuneup gabbi search.yaml file to modern standards
Tuneup gabbi search.yaml file to modern standards

Make use of METHOD: /url shorthand to make the request method more
visible and more tightly associated with the url for easier reading.

Change-Id: Iec90797f1a6dbe427f534808378d86a1f185051f

sileht/gnocchi,leandroreox/gnocchi,leandroreox/gnocchi,sileht/gnocchi,gnocchixyz/gnocchi,gnocchixyz/gnocchi