Cannot `os.spawnl` with no arguments

Bug report

Bug description:

Python 3.8 and 3.11.9

Probably related to: https://github.com/python/cpython/issues/52284
Seems to be the same as: https://github.com/python/cpython/issues/63130

A number of bugs:

1. • Doesn't work with no arguements.

>>> os.spawnl(os.P_NOWAIT, "c:\path_to_some_program\app.exe")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<frozen os>", line 930, in spawnl
ValueError: spawnv() arg 2 cannot be empty

2. If I try and make the arguement empty it also fails. This means that I am forced to send an arguement that may trigger an unknown behaviour in the spawned application.:

>>> os.spawnl(os.P_NOWAIT, "c:\path_to_some_program\app.exe", '')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<frozen os>", line 930, in spawnl
ValueError: spawnv() arg 2 first element cannot be empty

2. If any aspect of this is intended, then the documentation needs to be updated to explicitly say this. Currently it implies any arguments are optional. (Honestly, the docs for this are bad generally.)

CPython versions tested on:

3.11

Operating systems tested on:

Windows

从 traceback 中显示的 os.spawnl 实现以及 spawnl 和 spawnv 的相关文档入手。复现 Windows 下无参数和第一个参数为空的情况，然后确定预期行为，并更新实现或文档，使接受的参数要求明确且有测试覆盖。