Closed as not planned
Description
Documentation
https://github.com/python/cpython/blob/main/Doc/c-api/buffer.rst
.. c:member:: const char *format
A *NUL* terminated string in :mod:`struct` module style syntax describing
the contents of a single item. If this is ``NULL``, ``"B"`` (unsigned bytes)
is assumed.
NUL should be replaced by NULL.