message: Switch to MIT license
  Summary: More new files with old licenses creeping in, switch to MIT license.
diff: /**
  - * Copyright (c) 2016-present, Facebook, Inc.
  - * All rights reserved.
  + * Copyright (c) Facebook, Inc. and its affiliates.
  *
  - * This source code is licensed under the BSD-style license found in the
  - * LICENSE file in the root directory of this source tree. An additional grant
  - * of patent rights can be found in the PATENTS file in the same directory.
  + * This source code is licensed under the MIT license found in the
  + * LICENSE file in the root directory of this source tree.
  */
  #pragma once
  