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

Change-Id: Idb8ab16d764157020482611df27e17d92dd280ae
Reviewed-on: https://chromium-review.googlesource.com/194399
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
2 files changed