CHERRY-PICK: convert to print function

Newer repo's sometimes import the print function on us, and then import
these python files directly which then throws an error.  Convert us to
the print function to avoid it.  It's not a bad thing.

BUG=None
TEST=`./pre-upload_unittest.py` passes

Original-Change-Id: I4a633620c493d5e16bee2ef36a86ccaf2792dfaa
Reviewed-on: https://chromium-review.googlesource.com/172340
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
(cherry picked from commit 09d6a3d6e700eee002cc8df3b125ae2d56ec5acc)

Change-Id: Ic871760cd6af9d5ae7798cc01144429825e0f243
Reviewed-on: https://chromium-review.googlesource.com/210010
Reviewed-by: Bowgo Tsai <bowgotsai@chromium.org>
Commit-Queue: Bowgo Tsai <bowgotsai@chromium.org>
Tested-by: Bowgo Tsai <bowgotsai@chromium.org>
3 files changed