Remove also duplicate functions in the "os" module section

to have a resolution of 100 ns instead of 1 ms (the clock accuracy is between
0.5 ms and 15 ms).

Re-order importlib benchmarks to be consistent. Also print out what implementation of __import__ is used.

be consistent with other functions accepting file descriptors (fdlistdir() was
added in 3.3, so hasn't been released yet).

Reported by David-Sarah Hopwood on the Bitbucket bug tracker of
Tarek’s former verlib/distutils.version project.

Patch by Guilherme Polo and Roger Serwy.

#13933 refine patch using 'new' builtin

descriptors.

This dict entry is added a few lines after if the bzip2 module is
available, but removing this line was forgotten.

pysetup create, the setup.cfg creation helper, used to convert
package_data (from an existing setup.py) into extra_files, the
replacement for MANIFEST.in, but these files are only present in sdists,
not installed: they don’t have the same use case at all, so converting
one into the other did not work.