Pass commit to debItestUpload so we upload the same version that we've tested.
Pass commit to debItestUpload so we upload the same version that we've
tested.

This is take 2; take 1 was 7ff3d0432, which was reverted in 9b9233713
because debItestUpload didn't support keyword arguments. Releng has
since fixed this.

Yelp/paasta,Yelp/paasta