Remove Unicode characters from header, fixing lint. (#29126)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/29126
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Differential Revision: D18300420
Pulled By: ezyang
fbshipit-source-id: d9b3ec75098cdb54624e4f98d4c66db1f4ff62bd
