[PATCH evolve-ext] evolve: improve the help of the fold command

[Laurent Charignon]

Please discard this patch, I will send a V2
> On Jun 25, 2015, at 5:03 PM, Laurent Charignon <lcharignon at fb.com> wrote:
> 
> # HG changeset patch
> # User Laurent Charignon <lcharignon at fb.com>
> # Date 1435251233 25200
> #      Thu Jun 25 09:53:53 2015 -0700
> # Node ID e8411c1b9539c2d2bb02547feb938a6d78056133
> # Parent  d3328e6775b1f23c6ab41ccd8712e02abb6eea72
> evolve: improve the help of the fold command
> 
> The help of the fold command needed a little rework. This patch makes it a
> little less verbose and adds an example. It also highlights a little more the
> importance of the --exact flag.
> 
> diff --git a/hgext/evolve.py b/hgext/evolve.py
> --- a/hgext/evolve.py
> +++ b/hgext/evolve.py
> @@ -2580,9 +2580,8 @@ def touch(ui, repo, *revs, **opts):
> def fold(ui, repo, *revs, **opts):
>     """fold multiple revisions into a single one
> 
> -    Folds a set of revisions with the parent of the working directory.
> -    All revisions linearly between the given revisions and the parent
> -    of the working directory will also be folded.
> +    By default, folds all the revisions linearly between the given revisions
> +    and the parent of the working directory.
> 
>     Use --exact for folding only the specified revisions while ignoring the
>     parent of the working directory. In this case, the given revisions must
> @@ -2607,6 +2606,10 @@ def fold(ui, repo, *revs, **opts):
> 
>          hg fold 3:6
> 
> +     - Fold revisions 3 and 4:
> +
> +        hg fold '3 + 4' --exact
> +
>      - Only fold revisions linearly between foo and @::
> 
>          hg fold foo::@ --exact
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