Index: trunk/Ohana/src/opihi/cmd.data/vgrid.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.data/vgrid.c	(revision 7080)
+++ trunk/Ohana/src/opihi/cmd.data/vgrid.c	(revision 7917)
@@ -11,5 +11,5 @@
 
   if (argc != 11) {
-    fprintf (stderr, "USAGE: vgrid x y z buffer Xmin Xmax dX Ymin Ymax dY\n");
+    gprint (GP_ERR, "USAGE: vgrid x y z buffer Xmin Xmax dX Ymin Ymax dY\n");
     return (FALSE);
   }