bug#21345: search.texi notes

[Eli Zaretskii]

> From: Lubos Pintes <lubos.pintes@gmail.com>
> Date: Tue, 25 Aug 2015 19:13:08 +0200
> 
> doc/emacs/search.texi
> 83: Maybe the first "Then" isredundant.
> Then if you then type -> If you then type

INdeed; fixed.

> 229: Examples how `foo bar' is matched are confusing when rendered.
> I noticed this when converted to plain text, and also in Emacs info 
> browser. All examples have only one space.

That's a misfeature of the latest versions of Texinfo.  I fixed the
sources such that they generate several spaces as intended with both
old and new Texinfo.

Thanks.