Re: duplicate documentation

[Jan Stary]

On Nov 15 18:26:16, schwarze@usta.de wrote:
> > Implementing the -h or --help option mostly becomes calling usage(),
> 
> Not usually.
> 
> The usage() output ideally corresponds to the synopsis:
> 
>    $ man -h groff
>   groff [-abcegijklpstzCEGNRSUVXZ] [-d cs] [-D arg] [-f fam] [-F dir]
>         [-I dir] [-K arg] [-L arg] [-m name] [-M dir] [-n num] [-o list]
>         [-P arg] [-r cn] [-T dev] [-w name] [-W name] [file ...]
>   groff -h
>   groff --help

I don't mean groff specifically here, I mean generally:
calling --help, in the software I see in the wild,
most often means "call usage() and exit", and the actual
printf() in usage() tend to lack behind.