pep8 fixes

nova/tests/rpc_unittest.py

@@ -67,7 +67,7 @@ class RpcTestCase(test.TestCase):
         self.assertRaises(rpc.RemoteError,
                           rpc.call,
                           self.context,
-                          'test', 
+                          'test',
                           {"method": "fail",
                            "args": {"value": value}})
         try:

nova/tests/service_unittest.py

@@ -119,7 +119,7 @@ class ServiceTestCase(test.TestCase):
         service.db.service_create(mox.IgnoreArg(),
                                   service_create).AndReturn(service_ref)
         self.mox.ReplayAll()
-        
+
         app.start()
         app.stop()
         self.assert_(app)