pytorch

ddeaa541 - fix typo in resnet50_trainer.py

fix typo in resnet50_trainer.py Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/16219 Differential Revision: D13776742 Pulled By: bddppq fbshipit-source-id: 10a6ab4c58159b3f619b739074f773662722c1d9