[patch] Add demo to file_search_demo



The demo() command does not search the demo subdirectory for *.dem files.
This is fixed with the following patch.  With it, demo("cf") works.

OK to apply? 

Index: init-cl.lisp
===================================================================
RCS file: /cvsroot/maxima/maxima/src/init-cl.lisp,v
retrieving revision 1.12
diff -u -r1.12 init-cl.lisp
--- init-cl.lisp        21 Jun 2002 01:56:20 -0000      1.12
+++ init-cl.lisp        23 Jun 2002 12:04:18 -0000
@@ -122,7 +122,10 @@
              (maxima-data-path share-with-subdirs "###.mac")
              (maxima-data-path share-with-subdirs "###.mc")))
   (setq $file_search_demo
-       (list '(mlist) (maxima-data-path share-with-subdirs
+       (list '(mlist)
+             (maxima-data-path share-with-subdirs
+                                        "###.{dem,dm1,dm2,dm3,dmt}")
+             (maxima-data-path "{demo}"
                                         "###.{dem,dm1,dm2,dm3,dmt}")))
   (setq $file_search_usage
        (list '(mlist) (maxima-data-path share-with-subdirs