fix no cover pragma

Author: erichulburd

cirq-rigetti/cirq_rigetti/service.py

@@ -45,7 +45,7 @@ def wrapper(*args, **kwargs):
         if 'client' in kwargs:
             return function(*args, **kwargs)
 
-        with build_sync_client() as client:  # pragma: nocover
+        with build_sync_client() as client:  # pragma: no cover
             kwargs['client'] = client
             return function(*args, **kwargs)