(defun assert-prompt (name value)
(cond ((y-or-n-p "The old value of ~S is ~S.~
- ~%Do you want to supply a new value? "
+ ~%Do you want to supply a new value? "
name value)
(format *query-io* "~&Type a form to be evaluated:~%")
(flet ((read-it () (eval (read *query-io*))))