Add a newline before dependency graph output (#49127)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/49127
Small change, but useful: it means that double-clicking the line lets
you copy the url easily
Test Plan: Imported from OSS
Reviewed By: zdevito
Differential Revision: D25450408
Pulled By: suo
fbshipit-source-id: 8b13b971b444187a8de59c89cc8f60206035b2ad
