Minor comment cleanup, typos (#113898)
Summary:
X-link: https://github.com/pytorch/pytorch/pull/113898
Approved by: https://github.com/desertfire
Reviewed By: huydhn
Differential Revision: D51444085
Pulled By: janeyx99
fbshipit-source-id: 50a28790472df0cdd99a2123d3f3eb7aa57327aa