In interpolate, join short lines (#37170)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/37170
ghstack-source-id: 102773588
Test Plan: CI
Reviewed By: kimishpatel
Differential Revision: D21209998
fbshipit-source-id: 9386e54aa85a5576678d21d443017079028f8dca
