bug#5042: bug#9917: 24.0.90; Make `goto-line' consistent with the line number from the minibuffer

[Drew Adams]

> > In any buffer, including Info, a user can
> > want to go to a line counted from bob or from
> > point-min (current narrowing/restriction).
> 
> If that is the main use case for this issue, we could
> have a different binding for "M-g g" in Info mode.

It's not about Info mode, or any particular mode.
It's not about whether the buffer happens to be
narrowed.  It's about what the users wants in the
current context.

My point is that a user can want _either_ behavior,
and there's no way to know which behavior is wanted
at any given moment, in any given buffer, whether
narrowed or not.

IMO, we need either two different commands (& keys)
or a command with different prefix-arg behaviors.

We need _some_ way for a user to be able to get
either behavior, regardless of what a "default"
behavior might be.