Fix missing doc out= for torch.cumprod (#19340)

Summary:
Fix #19255 by adding the `out=None` argument for `torch.cumprod` missing [here](https://pytorch.org/docs/master/torch.html#torch.cumprod) also added the docstring for `out` in torch.cumsum which was missing [here](https://pytorch.org/docs/master/torch.html#torch.cumsum)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19340

Differential Revision: D14973931

Pulled By: ezyang

fbshipit-source-id: 232f5c9a606b749d67d068afad151539866fedda

diff --git a/torch/_torch_docs.py b/torch/_torch_docs.py
index a2331ec..95c681b 100644 (file)
--- a/torch/_torch_docs.py
+++ b/torch/_torch_docs.py
@@ -1137,7 +1137,7 @@ Example::
 
 add_docstr(torch.cumprod,
            r"""
-cumprod(input, dim, dtype=None) -> Tensor
+cumprod(input, dim, out=None, dtype=None) -> Tensor
 
 Returns the cumulative product of elements of :attr:`input` in the dimension
 :attr:`dim`.
@@ -1152,6 +1152,7 @@ Args:
     input (Tensor): the input tensor
     dim  (int): the dimension to do the operation over
     {dtype}
+    out (Tensor, optional): the output tensor
 
 Example::
 
@@ -1186,6 +1187,7 @@ Args:
     input (Tensor): the input tensor
     dim  (int): the dimension to do the operation over
     {dtype}
+    out (Tensor, optional): the output tensor
 
 Example::