[issue45863] tarfile zeroes ustar header fields unnecessarily

[Nikita Sobolev]

Change by Nikita Sobolev <mail at sobolevn.me>:


----------
nosy: +sobolevn
nosy_count: 4.0 -> 5.0
pull_requests: +29416
pull_request: https://github.com/python/cpython/pull/31248

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45863>
_______________________________________