python 3.8.2 compile: add tp_print to PyTypeObject

python 3.8.2 compile: add tp_print to PyTypeObject

I couldn't find this documented on the Internet though,
as the 3.9 and 3.8.2rc documentation didn't mention it
as an added item...

I'm using Ubuntu 20.04 alpha with python3 --version
Python 3.8.2rc1

This fixes pyuno/source/module/pyuno.cxx:1689:1: error:
missing initializer for member ‘_typeobject::tp_print’
[-Werror=missing-field-initializers]

Change-Id: Idec5720050572b34628267cd94557dabf7edbf3c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/89247
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Gbp-Pq: Name python3.8.2.diff