Index: trunk/Ohana/src/opihi/dvo/mextract.c
===================================================================
--- trunk/Ohana/src/opihi/dvo/mextract.c	(revision 7680)
+++ trunk/Ohana/src/opihi/dvo/mextract.c	(revision 7917)
@@ -98,6 +98,6 @@
 
 usage:
-  fprintf (stderr, "USAGE: mextract (value) [options]\n");
-  fprintf (stderr, "  value: measure.parameter or photcode\n");
+  gprint (GP_ERR, "USAGE: mextract (value) [options]\n");
+  gprint (GP_ERR, "  value: measure.parameter or photcode\n");
   return (FALSE);