bug#3699: Emacs manual revision for whitespace.el

[Vinicius Jose Latorre]

Hi Chong,


> Could you suggest a change to the Emacs manual that incorporates
> information about the whitespace package?  Thanks.
>
>   
> > (info "(emacs) Useless Whitespace") should mention whitespace.el items.
> >
> > show-trailing-whitespace is a variable defined in `frame.el'... maybe
> > its docstring should mention whitespace.el existence... or maybe it
> > should be merged/moved into that file?
> >
> > And whitespace.el should say what the difference between "HARD" and
> > non-HARD whitespace is.
> >     

Ok, I'll do it.


Regards,


Vinicius