Log Message:
py-psutil: updated to 5.7.2

5.7.2
=====
Bug fixes
- wheels for 2.7 were inadvertently deleted.

5.7.1
=====
Enhancements
- 1729_: parallel tests on UNIX (make test-parallel). They're twice as fast!
- 1741_: "make build/install" is now run in parallel and it's about \ 
15% faster
  on UNIX.
- 1747_: `Process.wait()` on POSIX returns an enum, showing the negative signal
  which was used to terminate the process::
    >>> import psutil
    >>> p = psutil.Process(9891)
    >>> p.terminate()
    >>> p.wait()
    <Negsignal.SIGTERM: -15>
- 1747_: `Process.wait()` return value is cached so that the exit code can be
  retrieved on then next call.
- 1747_: Process provides more info about the process on str() and repr()
  (status and exit code)::
    >>> proc
    psutil.Process(pid=12739, name='python3', status='terminated',
                   exitcode=<Negsigs.SIGTERM: -15>, started='15:08:20')
- 1757_: memory leak tests are now stable.
- 1768_: [Windows] added support for Windows Nano Server.

Bug fixes
- 1726_: [Linux] cpu_freq() parsing should use spaces instead of tabs on ia64.
- 1760_: [Linux] Process.rlimit() does not handle long long type properly.
- 1766_: [macOS] NoSuchProcess may be raised instead of ZombieProcess.
- 1781_: fix signature of callback function for getloadavg().