(read-abbrev-file): Use abbrev-file-name if optional

file is nil.

lisp/ChangeLog

+2006-04-19  Reiner Steib  <Reiner.Steib@gmx.de>
+
+	* abbrev.el (read-abbrev-file): Use abbrev-file-name if optional
+	file is nil.
+
 2006-04-18  Richard Stallman  <rms@gnu.org>
 	* tooltip.el (tooltip-mode, tooltip-use-echo-area): Doc fixes.

lisp/abbrev.el

@@ -202,7 +202,7 @@ Optional second argument QUIETLY non-nil means don't display a message."
     (read-file-name (format "Read abbrev file (default %s): "
 			    abbrev-file-name)
 		    nil abbrev-file-name t)))
-  (load file nil quietly)
+  (load (or file abbrev-file-name) nil quietly)
   (setq abbrevs-changed nil))
 
 (defun quietly-read-abbrev-file (&optional file)