Fix customizing of ido-mode (Bug#41557)

lisp/ido.el (ido-mode): When setting the user option to nil, pass 0 to
the function, so that it will be disabled as intended.

diff --git a/lisp/ido.el b/lisp/ido.el
index ad71d468cb41f13c81dd95a6dca15b71d00a2ddd..4fb01c68dfaf89473c2cd9ac267e0aa11948c472 100644 (file)
--- a/lisp/ido.el
+++ b/lisp/ido.el
@@ -355,7 +355,7 @@ The following values are possible:
 Setting this variable directly does not take effect;
 use either \\[customize] or the function `ido-mode'."
   :set #'(lambda (_symbol value)
-          (ido-mode value))
+           (ido-mode (or value 0)))
   :initialize #'custom-initialize-default
   :require 'ido
   :link '(emacs-commentary-link "ido.el")