bug#31759: 26.1; Unwelcome change in mode-line revision display for Mercurial repositories

[Eli Zaretskii]

> From: Andy Moreton <andrewjmoreton@gmail.com>
> Date: Fri, 08 Jun 2018 19:44:26 +0100
> 
> This is now controlled by the variables:
>      `vc-hg-symbolic-revision-styles'
>      `vc-hg-use-file-version-for-mode-line-version'
> 
> To show the local Hg revision number (rather than the changeset hash),
> try something like:
> 
>     (setq vc-hg-symbolic-revision-styles '("{rev}"))

Thanks for the recipe.

Daniel, this is your change.  Please in the future try to avoid
pushing changes with user-visible effects, let alone
backward-incompatible behavior changes, without any documentation in
NEWS and in the manuals.  TIA.