pytorch

feba6806 - clarify that `torch.finfo.tiny` is the smallest normal number (#63241)

clarify that `torch.finfo.tiny` is the smallest normal number (#63241) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/63241 This is a common source of confusion, but it matches the NumPy behavior. Fixes #44010 Fixes #59526 Test Plan: Imported from OSS Reviewed By: ejguan Differential Revision: D30307646 Pulled By: dagitses fbshipit-source-id: d848140ba267560387d83f3e7acba8c3cdc53d82