use_file: added ``tune'' argument;

--- a/src/Pure/ML-Systems/polyml-5.0.ML	Sun Sep 16 15:36:57 2007 +0200
+++ b/src/Pure/ML-Systems/polyml-5.0.ML	Sun Sep 16 20:25:43 2007 +0200
@@ -34,8 +34,8 @@
     if verbose then print (output ()) else ()
   end;
 
-fun use_file output verbose name =
+fun use_file tune output verbose name =
   let
     val instream = TextIO.openIn name;
     val txt = TextIO.inputAll instream before TextIO.closeIn instream;
-  in use_text name output verbose txt end;
+  in use_text tune name output verbose txt end;