With invoke_without_command set commands are not marked as optional

[andreynovikov]

Having

@click.group(invoke_without_command=True)
def main():
    if ctx.invoked_subcommand is not None:
        return
    # do something by default

I expect --help to output:

Usage: app.py [OPTIONS] [COMMAND] [ARGS]...

But it outputs:

Usage: app.py [OPTIONS] COMMAND [ARGS]...

Environment:

• Python version: 3.11.8
• Click version: 8.2.0

[Rowlando13]

Interesting idea. I am not sure how consistent Click is in its marking optional with brackets in the help pages. I will have to take a look.