Restore the contiguity preprocessing of linspace (#41286)
Summary:
The contiguity preprocessing was mistakenly removed in
cd48fb503088af2c00884f1619db571fffbcdafa . It causes erroneous output
when the output tensor is not contiguous. Here we restore this
preprocessing.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/41286
Reviewed By: zou3519
Differential Revision: D22550822
Pulled By: ezyang
fbshipit-source-id: ebad4e2ba83d2d808e3f958d4adc9a5513a95bec
