Fix error message formatting in AT_CHECK/AT_ERROR (#16067)
Summary:
Changelog:
- Fix formatting for error messages in prelu, EmbeddingBag, RNN
Fixes https://github.com/pytorch/pytorch/issues/16043
Pull Request resolved: https://github.com/pytorch/pytorch/pull/16067
Differential Revision: D13693286
Pulled By: soumith
fbshipit-source-id: b0760d13c9a45e82dababfc44dabe648e5345ca3
