Correct typo in docs for [project.scripts]

[gregbell26]

There is a slight (but important) discrepancy between the docs and the actual behavior.

As observed here in this generated script:

[project.scripts]
     build_autograder = "autograder_cli.build_autograder:tool"

#!/usr/local/bin/python3
#-*- coding: utf-8 -*-
import re
import sys
from autograder_cli.build_autograder import tool
if __name__ == '__main__':
    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
    sys.exit(tool())

We see that the return value from the tool is used as the exit code.

I had my code setup to return True in the case of a success and False in the case of a failure, thinking that the generated code would simply discard that return value.

As such, adding this one line will make it clear what the function should be returning.

---

📚 Documentation preview 📚: https://python-packaging-user-guide--1770.org.readthedocs.build/en/1770/

[gregbell26]

This is mentioned as well in the docs here: https://packaging.python.org/en/latest/specifications/entry-points/#use-for-scripts, so I think it should be consistent.