message: Adding x-ms-long-running-operation for patch
diff: "Updates a dataController tags.": {
  "$ref": "./examples/UpdateDataController.json"
  }
  + },
  + "x-ms-long-running-operation": true,
  + "x-ms-long-running-operation-options": {
  + "final-state-via": "azure-async-operation"
  }
  }
  },
  