Index: trunk/Ohana/src/opihi/cmd.data/vbin.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.data/vbin.c	(revision 5850)
+++ trunk/Ohana/src/opihi/cmd.data/vbin.c	(revision 7917)
@@ -25,6 +25,6 @@
 
   if (argc != 4) {
-    fprintf (stderr, "USAGE: vbin <input> <output> scale \n");
-    fprintf (stderr, "  (use interpolate to expand)\n");
+    gprint (GP_ERR, "USAGE: vbin <input> <output> scale \n");
+    gprint (GP_ERR, "  (use interpolate to expand)\n");
     return (FALSE);
   }
@@ -35,5 +35,5 @@
   scale  = atof (argv[3]);
   if ((int)(scale) != scale) {
-    fprintf (stderr, "integer binning only, please\n");
+    gprint (GP_ERR, "integer binning only, please\n");
     return (FALSE);
   }