Add original author information

Author: abravalheri

newsfragments/4965.feature.rst

@@ -1,5 +1,8 @@
 Incorporated ``wheel.macosx_libfile`` as a private module in the ``setuptools`` project.
 The discussion leading to this approach can be found in #4935 and in the Discourse thread 87509.
+The original code was provided to pypa/wheel#314 by Grzegorz Bokota (:user:`Czaki`),
+and further improved by community members in the context of the :pypa:`wheel` project
+(see commit history in https://github.com/pypa/wheel/commits/0.46.1/src/wheel/macosx_libfile.py).
 Third party software interested in using this module are encouraged to interact
 in the Discourse thread and propose alternatives (e.g. extracting this module
 in its own separated project).

setuptools/command/_macosx_libfile.py

@@ -1,5 +1,5 @@
-# This file was originally contributed to the pypa/wheel project under
-# The following license and copyright notice:
+# This file was originally contributed by Grzegorz Bokota (@Czaki)
+# to pypa/wheel under the following license and copyright notice:
 #
 # MIT License
 #