Tiny spelling mistake fix. (#20425)
Summary:
"then the output would also has k tensors" -> "then the output would also have k tensors"
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20425
Differential Revision: D15320152
Pulled By: zou3519
fbshipit-source-id: b04e2ccd29c6a3e33ad1040d0ea975a01a7bd9b5
