[PATCH 2 of 2 stable] help: don't crash on help for 'sections' with multiple '.'

[Matt Mackall]

On Sat, 2014-11-01 at 19:03 +0100, Mads Kiilerich wrote:
> # HG changeset patch
> # User Mads Kiilerich <madski at unity3d.com>
> # Date 1414864951 -3600
> #      Sat Nov 01 19:02:31 2014 +0100
> # Branch stable
> # Node ID 234760fc00651b8b915382c3782588dcd42b63a7
> # Parent  099b15767a3bd6392c3d71a3ada377e23534f06c
> help: don't crash on help for 'sections' with multiple '.'

These are queued for stable, thanks.

-- 
Mathematics is the supreme nostalgia of our time.