bug#37324: Small typo in Emacs manual (frame parameters)

[Sebastian Urban]

> > In Emacs manual INFO 21.11 Frame Parameters
> > - (add-to-list 'default-frame-alist '(width  . 90))
> > + (add-to-list 'default-frame-alist '(width . 90))
> > (...)
> > I think there is one unnecessary "space".
>
> That's on purpose: the example tries to align this line with the
> next.

Ok, so I'm guessing that the number of spaces - in this example -
before and after the dot is insignificant from perspective of the code
(well, perhaps 1 is needed).  But... is changing the insides of the
code example just to align it to the next line is reasonable?  If
everywhere (I think) there is PARAMETER-ONE_SPACE-DOT-ONE_SPACE-VALUE
perhaps it would be better to stick to that, because otherwise someone
may think that there is an error in the code example.