Re: [PATCH 2/3] parse-options: add PARSE_OPT_CUSTOM_ARGH for complicated argh's

> Stephen Boyd <bebarino@gmail.com> writes:
>> If argh is complicated, i.e. the option takes more than one argument,
>> don't add the brackets around argh in the usage message.
>
> I think later user wants a bit more descriptive explanation, like...
>
> 	Usually, argh element in struct option points at a placeholder
> 	value (e.g. "val"), and this is used to show
>
> 	    --option=<val>
>
> 	by enclosing the string inside of angle brackets.
>
> 	When the option takes something more complex (e.g. optional part
> 	separated by comma), you would want to produce a help that looks
> 	like
>
> 	    --option=<val1>[,<val2>]
>
> 	In such a case, the caller can pass a string to argh with
> 	placeholders already enclosed in necessary angle brackets
> 	(e.g. "<val1>[,<val2>]") and set this option.