Fix lint (#39527)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/39527
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Differential Revision: D21884798
Pulled By: ezyang
fbshipit-source-id: a130bfd4cc122ea1d45e7db7303bf44e04f08703
