Re: [PATCH(pkgs)] Appt.el parenthesizing fix

Hrvoje Niksic writes:
 > "Stephen J. Turnbull" <[email protected]> writes:
 > 
 > > I thought that was equivalent to `(defvar foo nil)', but I guess
 > > not.  I hate special forms that treat missing arguments differently
 > > from `nil'....
 > 
 > But in this case that makes sense, don't you agree?  At least it does
 > to me.

Yes.

Something like Perl's 'undef' would be cleaner, though.  I think
Mocklisp actually had an 'undef'-like thing that functions could
return but GNU Emacs Lisp never has.