[Gradient Compression] clang-format test_c10d.py (#48349)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48349
Apply clang-format only.
Original PR issue: Investigate Applying PowerSGD to Communication Hook for Gradient Compression #47202
ghstack-source-id: 117305263
Test Plan: N/A
Reviewed By: pritamdamania87
Differential Revision: D25138833
fbshipit-source-id: 4ff112b579c0c5b8146495ebd2976d5faead2c1b
