[PATCH] doc: fix short underline which causes make -C doc to fail

[Ryan McElroy]

On 3/22/17 3:59 PM, Kostia Balytskyi wrote:
> # HG changeset patch
> # User Kostia Balytskyi <ikostia at fb.com>
> # Date 1490198110 25200
> #      Wed Mar 22 08:55:10 2017 -0700
> # Node ID 86383b66465bd7122bb5380047c6e87c888d8227
> # Parent  f808c796dfd2c6e4e6990c73a838320512aafeca
> doc: fix short underline which causes make -C doc to fail
>
>
> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.mercurial-2Dscm.org_repo_hg-2Dcommitted_rev_79d98e1b21a7&d=DwIGaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=Jw8rundaE7TbmqBYd1txIQ&m=XwlnUJ7Dm-i0fD3GxgWTBsbB8Z7wrRzm28VTv3swSy8&s=ICe_Z0HfgsVXfef1aAZy7kC_51u1Iimt8HqYWdV5Jzg&e=

Generally we just use the commit hash, right? Can probably be updated 
in-flight.

> broke 'make -C doc' by not adding enough underline. This fixes it.

My bad! Should this be checked in check-code? I broke it when I changed 
the name from 'behavior' to 'commands' I believe.

>
> diff --git a/mercurial/help/config.txt b/mercurial/help/config.txt
> --- a/mercurial/help/config.txt
> +++ b/mercurial/help/config.txt
> @@ -415,7 +415,7 @@ effect and style see :hg:`help color`.
>       extension).
>   
>   ``commands``
> -----------
> +------------
>   
>   ``update.requiredest``
>       Require that the user pass a destination when running ``hg update``.
>