bug#5042: 23.1; linum-mode gives incorrect line numbers with narrowed buffers

[Mark Lillibridge <mark.lillibridge@hp.com>]

Drew wrote:
>  Mark wrote:
>  > That might be a good idea.  Would an absolute override be better
>  > than a toggle?  E.g., a positive prefix uses absolute and a negative
>  > prefix uses relative to start of restriction.
>  
>  I don't think so. Given the option's value, there already is a
>  default behavior, which makes one of your cases unnecessary. IOW,
>  there is no override for one of the two possibilities - the default
>  behavior already corresponds to the
>  requested one.
>  
>  If a given user prefers, in general, to use absolute numbering or
>  relative numbering, then s?he would set the option to reflect
>  that. Then s?he need only use `C-u' for the minority of times when
>  s?he wants the alternative behavior.
>  
>  FWIW, I do this kind of thing in some of my own code. Given the
>  ability to customize the default behavior, I see no reason for also
>  being able to specify the _default_ behavior explicitly via a
>  particular prefix arg.
>  
>  If, on the other hand, you were anticipating non-interactive use,
>  then I'd say that in that case all that's needed is to let-bind the
>  variable (option) to give it the value you want currently.

Ok.  

- Mark