Merge remote-tracking branch 'nccl/master' into develop

src/debug.cc

@@ -1,6 +1,6 @@
 /*************************************************************************
  * Copyright (c) 2016-2020, NVIDIA CORPORATION. All rights reserved.
- * Modifications Copyright (c) 2019-2020 Advanced Micro Devices, Inc. All rights reserved.
+ * Modifications Copyright (c) 2019-2021 Advanced Micro Devices, Inc. All rights reserved.
  *
  * See LICENSE.txt for license information
  ************************************************************************/