custom-save-all leaves custom-file buffer

[David Reitter <david.reitter@gmail.com>]

Is there a special reason why custom-save-all leaves the buffer with  
custom-file?
I don't think the file should appear in the buffers lists - it's  
loaded temporarily and should be discarded.

The problem with below patch is that if custom-file is already loaded  
as ordinary buffer, it will kill it as find-file-noselect doesn't  
load the file a second time.

*** cus-edit.el 12 Aug 2005 11:17:57 -0000      1.230
--- cus-edit.el 25 Aug 2005 20:25:23 -0000
***************
*** 4144,4150 ****
                                        recentf-exclude))))
         (set-buffer (find-file-noselect (custom-file))))
         (let ((file-precious-flag t))
!       (save-buffer)))))

   ;;; The Customize Menu.

--- 4144,4151 ----
                                        recentf-exclude))))
         (set-buffer (find-file-noselect (custom-file))))
         (let ((file-precious-flag t))
!       (save-buffer))
!       (kill-buffer nil))))

   ;;; The Customize Menu.