[PATCH] Correct example concerning "hg purge" alias in "hgrc.5"

[Martin von Zweigbergk]

On Fri, Feb 17, 2017 at 3:58 AM, Dr Rainer Woitok
<rainer.woitok at gmail.com> wrote:
> # HG changeset patch
> # User Rainer Woitok <Rainer.Woitok at Gmail.Com>
> # Date 1487326116 -3600
> # Parent  56ed3565559ad36d11eaf58697c2416bf5bc1f2b
> doc: correct example concerning "hg purge" alias in man page "hgrc.5"
>
> The "hg purge" alias as currently described in "hgrc.5" issues a possibly
> confusing error message like
>
>    rm: missing operand
>    Try 'rm --help' for more information.
>
> if no files are to be purged at all.
>
> This patch slightly modifies the example by adding a "-f" option to the
> "rm" command.
>
> diff --git a/mercurial/help/config.txt b/mercurial/help/config.txt
> --- a/mercurial/help/config.txt
> +++ b/mercurial/help/config.txt
> @@ -276,7 +276,7 @@
>  will let you do ``hg echo foo`` to have ``foo`` printed in your
>  terminal. A better example might be::
>
> -   purge = !$HG status --no-status --unknown -0 re: | xargs -0 rm
> +   purge = !$HG status --no-status --unknown -0 re: | xargs -0 rm -f

"xargs -r" would have shown the intent better, but that's apparently a
GNU extension, so your patch is probably the best we can do in a
portable way.  Queued, thanks.


>
>  which will make ``hg purge`` delete all unknown files in the
>  repository in the same manner as the purge extension.
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