contrib/python-zstandard/MANIFEST.in

churn: remove redundant round()

To my surprise, the int() is required.

Spotted by Mads when he reviewed D5063. Thanks!

Differential Revision: https://phab.mercurial-scm.org/D5086

graft c-ext
graft debian
graft zstd
graft tests
include make_cffi.py
include setup_zstd.py
include zstd.c
include zstd_cffi.py
include LICENSE
include NEWS.rst