[Py3] Use brackets for python print

Bug: 1205898
Change-Id: Ie10ab3a9fd34fc2a521d52c60b48054dea8b4108
Reviewed-on: https://chromium-review.googlesource.com/c/native_client/pnacl-llvm/+/3491008
Reviewed-by: Derek Schuff <dschuff@chromium.org>
1 file changed