Index: trunk/Ohana/src/opihi/cmd.data/fft1d.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.data/fft1d.c	(revision 4689)
+++ trunk/Ohana/src/opihi/cmd.data/fft1d.c	(revision 7917)
@@ -8,5 +8,5 @@
 
   if ((argc != 6) || (strcmp (argv[3], "to"))) {
-    fprintf (stderr, "USAGE: fft1d (real) (imag) to (real) (imag)\n");
+    gprint (GP_ERR, "USAGE: fft1d (real) (imag) to (real) (imag)\n");
     return (FALSE);
   }
@@ -24,10 +24,10 @@
   Npix = Ire[0].Nelements;
   if (!ZeroImaginary && (Npix != Iim[0].Nelements)) {
-    fprintf (stderr, "vector mismatch in size\n");
+    gprint (GP_ERR, "vector mismatch in size\n");
     return (FALSE);
   }
 
   if (!IsBinary (Npix)) {
-    fprintf (stderr, "Npix is not a binary number!\n");
+    gprint (GP_ERR, "Npix is not a binary number!\n");
     return (FALSE);
   }