Re: Git branch outputs usage message on stderr

> From: Junio C Hamano <gitster@pobox.com>
> Date: Wed, 15 Jan 2025 09:56:23 -0800
> Subject: [PATCH] parse-options: add show_usage_help()
>
> Many commands call usage_with_options() when they are asked to give
> the help message, but it incorrectly sends the help text to the
> standard error stream.  When the user asked for it with "git cmd -h",
> the help message is the primary output from the command, hence we
> should send it to the standard output stream.
>
> Introduce a helper function that captures the common pattern
>
> 	if (argc == 2 && !strcmp(argv[1], "-h"))
> 		usage_with_options(usage, options);
>
> and replaces it with
>
> 	show_usage_help(argc, argv, usage, options);
>
> to help correct code paths (there are 40 or so of them).
>
> Suggested-by: Jeff King <peff@peff.net>