Re: doc elisp intro cross reference fixes

[Luc Teirlinck]

Stefan Monnier wrote:

   Why should they be independent mechanisms ?
   What is the benefit ?  Why should something be only allowed via M-x
   customize-variable but not via M-x set-variable (and vice-versa, BTW) ?

   As a programmer, the distinction seems very faint and I have a hard time
   coming up with cases where it could make sense to prevent one use
   and allow the other.

   As a user it just makes for inconsistency where some variables can be set
   via M-x set-variable while others need M-x customize-variable.

But there is an "inconsistency" regardless of the `*' or no `*' stuff.
There are plenty of variables with :set functions for which M-x
customize-variable is going to have an effect and M-x set-variable is
not.  Having the desired effect or not having any effect whatsoever
can hardly be described as a "very faint distinction".

Sincerely,

Luc.