Index: trunk/Ohana/src/opihi/cmd.data/fft2d.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.data/fft2d.c	(revision 7080)
+++ trunk/Ohana/src/opihi/cmd.data/fft2d.c	(revision 7917)
@@ -15,5 +15,5 @@
 
   if ((argc != 6) || (strcmp (argv[3], "to"))) {
-    fprintf (stderr, "USAGE: fft2d (real) (imag) to (real) (imag)\n");
+    gprint (GP_ERR, "USAGE: fft2d (real) (imag) to (real) (imag)\n");
     return (FALSE);
   }
@@ -43,5 +43,5 @@
   Naxis[0] = Ny; Naxis[1] = Nx;
   if (!IsBinary (Npix)) {
-    fprintf (stderr, "dimensions are not binary!\n");
+    gprint (GP_ERR, "dimensions are not binary!\n");
     return (FALSE);
   }