pytorch

6e1cfcdf - cauchy_ few fixes (1) check gamma > 0 (2) better dtype error log (#93314)

cauchy_ few fixes (1) check gamma > 0 (2) better dtype error log (#93314) Related #92047 (1) `torch.Tensor.cauchy_` is missing check for `gamma > 0` (`torch.distributions.cauchy.Cauchy` correctly checks `gamma > 0`). (2) add better error log on dtype similar to exponential_ Pull Request resolved: https://github.com/pytorch/pytorch/pull/93314 Approved by: https://github.com/jgong5, https://github.com/fritzo, https://github.com/lezcano