Make torchvision install chatty. (#21476)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21476
ghimport-source-id: adfd08b818f31ebbdf3da89d6bb95d33e14a9403
Differential Revision: D15715270
Pulled By: ezyang
fbshipit-source-id: dde02579d9960ac960306d0a024b8e17846ae0ff
