[docs] [issue33319] `subprocess.run` documentation doesn't tell is using `stdout=PIPE` safe

[miss-islington]

Change by miss-islington <mariatta.wijaya+miss-islington at gmail.com>:


----------
pull_requests: +12460

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33319>
_______________________________________