does not represent a valid value.
+2009-05-02 Martin Rudalics <rudalics@gmx.at>
+
+ * frame.el (pop-up-frame-function): Remove choice nil since it
+ does not represent a valid value.
+
2009-04-30 David Reitter <david.reitter@gmail.com>
* term/ns-win.el (ns-make-command-string, ns-grabenv)
This function is called with no arguments and should return a new
frame. The default value calls `make-frame' with the argument
`pop-up-frame-alist'."
- :type '(choice (const nil) (function :tag "function"))
+ :type 'function
:group 'frames)
(defcustom special-display-frame-alist