I agree with Xavier's comment, but I've bitten by this before so I think it would be better if we add more common arguments to the subprocess.run() signature.

Adding **kwargs wouldn't be entirely correct since subprocess.run() doesn't pass all its arguments to subprocess.Popen().

Let's add 'env=None' to the signature of subprocess.run():

.. function:: run(args, *, stdin=None, input=None, stdout=None, stderr=None,\
                  shell=False, cwd=None, timeout=None, check=False, \
                  encoding=None, errors=None, text=None)

https://github.com/python/cpython/blob/3055c947f98a078bd10d6a8cc352048a1b771d60/Doc/library/subprocess.rst#using-the-modsubprocess-module