Make eval-defun on a pre-defined defcustom call any :set function

* lisp/emacs-lisp/lisp-mode.el (eval-defun-1): Doc fix.
Respect a defcustom's :set function, if appropriate. 
(eval-defun): Doc fix.

* doc/lispref/customize.texi (Variable Definitions): Mention eval-defun
on a defcustom calls the :set function when appropriate.

* etc/NEWS: Mention this.

Fixes: debbugs:109

1 files changed, 5 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 242b8929fd2..361e49afe04 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -24,6 +24,11 @@ so we will look at it and add it to the manual.
 * Installation Changes in Emacs 24.4
 * Startup Changes in Emacs 24.4
 * Changes in Emacs 24.4
+
++++
+** `eval-defun' on an already defined defcustom calls the :set function,
+if there is one.
+
 * Editing Changes in Emacs 24.4