* etc/NEWS: Mention new feature of register commands.

etc/ChangeLog

@@ -1,3 +1,7 @@
+2013-10-07  Leo Liu  <sdl.web@gmail.com>
+
+	* NEWS: Mention new feature of register commands.
+
 2013-10-02  Fabrice Niessen  <fni@missioncriticalit.com>
 
 	* themes/leuven-theme.el: Add Commentary and some headers, update

etc/NEWS

@@ -181,6 +181,8 @@ visual order of characters on the screen: <left> always moves to the
 left, <right> always moves to the right, disregarding the surrounding
 bidirectional context.
 
+** All register commands can now show help with preview.
+
 ** New command `kmacro-to-register' to store keyboard macros in registers.
 
 ** Shell Script mode

lisp/register.el

@@ -123,8 +123,6 @@ See the documentation of the variable `register-alist' for possible VALUEs."
 If SHOW-EMPTY is non-nil show the window even if no registers."
   (when (or show-empty (consp register-alist))
     (let ((split-height-threshold 0))
-      ;; XXX: why with-temp-buffer-window always pops up the temp
-      ;; window even if one already shown?
       (with-temp-buffer-window
        buffer
        (cons 'display-buffer-below-selected