Missing curly bracket. (#47855)
Summary:
Typo fix
Pull Request resolved: https://github.com/pytorch/pytorch/pull/47855
Reviewed By: smessmer
Differential Revision: D24951767
Pulled By: ezyang
fbshipit-source-id: 8884390370d4d71efd6cee10c3e0b8f55d7e5739
