coreutils: --list --help is not compatible with busybox

[oech3]

coreutils/src/bin/coreutils.rs

Lines 77 to 89 in 24d2263

	match util {
	"--list" => {
	// If --help is also present, show usage instead of list
	if args.any(|arg| arg == "--help" || arg == "-h") {
	usage(&utils, binary_as_util);
	process::exit(0);
	}
	let utils: Vec<_> = utils.keys().collect();
	for util in utils {
	println!("{util}");
	}
	process::exit(0);
	}

But busybox do same things with --list at --list --help. We should remove it.

[oech3]

busybox --list ANY_STRING is same with --list.
@pixelb Do you agree with this behavior?

[pixelb]

busybox --list ANY_STRING is same with --list.
@pixelb Do you agree with this behavior?

Well no for forward compatibility reasons.
It precludes doing something like busybox --list POSIX or whatever. I.e. it's bad practice to be too lax like that

[oech3]

Hmm... it seems we need exit 0 with coreutils no args and laxed --list to run busybox test suite.
Thus, we cannot use GNU coreutils at busybox tests.