fix ctc_loss argument check error message (#26325)
Summary:
Was confused by the wrong message while debugging.
Turns out cpu version is wrong on comparison direction and gpu version is printing wrong number in addition to that.
This fix should make the error message correct.
jjsjann123 for tracking
Pull Request resolved: https://github.com/pytorch/pytorch/pull/26325
Differential Revision: D17408969
Pulled By: soumith
fbshipit-source-id: 0d9330e00aaabcb3e8e893b37a6a53fb378171c5
