[DDP][BE] Fix clang-tidy (#73299)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/73299
Test Plan: Imported from OSS
Reviewed By: george-qi
Differential Revision: D34422578
Pulled By: awgu
fbshipit-source-id: 41bcb2b9f617d7a8c446e72250d415e05f8e8b31
(cherry picked from commit 0e534171f05dbc55c4b4496888b25ab1a494b97c)
