bug#22483: 25.1.50; Doc string of `isearch-lax-whitespace' does not show toggle key

[Eli Zaretskii]

> Date: Thu, 28 Jan 2016 08:00:38 -0800 (PST)
> From: Drew Adams <drew.adams@oracle.com>
> 
> > Not only that, but if you actually try `M-x
> > isearch-toggle-lax-whitespace' you may be in for a bit of a surprise.
> 
> Especially in Emacs 24.5 (i.e., before Emacs 25 builds), where the
> resulting behavior includes highlighting the entire buffer with the
> lazy-highlight face.

We cannot (yet) correct the past.