Index: trunk/Ohana/src/opihi/cmd.data/rotate.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.data/rotate.c	(revision 7080)
+++ trunk/Ohana/src/opihi/cmd.data/rotate.c	(revision 7917)
@@ -23,5 +23,5 @@
 
   if (argc != 3) {
-    fprintf (stderr, "USAGE: rotate <buffer> <angle>\n");
+    gprint (GP_ERR, "USAGE: rotate <buffer> <angle>\n");
     return (FALSE);
   }
@@ -29,5 +29,5 @@
 
   if ((atof (argv[1]) < -180) || (atof (argv[1]) > 180)) {
-    fprintf (stderr, "valid rotate angle between -180 and +180 degrees\n");
+    gprint (GP_ERR, "valid rotate angle between -180 and +180 degrees\n");
     return (FALSE);
   }
@@ -95,5 +95,5 @@
     X1 = NY - Yo;
     Y1 = Xo;
-    fprintf (stderr, "%f %f -> %f %f\n", Xo, Yo, X1, Y1);
+    gprint (GP_ERR, "%f %f -> %f %f\n", Xo, Yo, X1, Y1);
     gfits_modify (&buf[0].header, "CRPIX1", "%lf", 1, X1);
     gfits_modify (&buf[0].header, "CRPIX2", "%lf", 1, Y1);
@@ -108,6 +108,6 @@
     PC21 = pc11;
     PC22 = pc12;
-    fprintf (stderr, "%f %f  ->  %f %f\n", pc11, pc12, PC11, PC12);
-    fprintf (stderr, "%f %f  ->  %f %f\n", pc21, pc22, PC21, PC22);
+    gprint (GP_ERR, "%f %f  ->  %f %f\n", pc11, pc12, PC11, PC12);
+    gprint (GP_ERR, "%f %f  ->  %f %f\n", pc21, pc22, PC21, PC22);
     gfits_modify (&buf[0].header, "PC001001", "%le", 1, PC11);
     gfits_modify (&buf[0].header, "PC001002", "%le", 1, PC12);
@@ -228,5 +228,5 @@
   SinAngle = sin (angle*RAD_DEG);
   
-  fprintf (stderr, "rotating: %f %f %f\n", angle, CosAngle, SinAngle);
+  gprint (GP_ERR, "rotating: %f %f %f\n", angle, CosAngle, SinAngle);
 
   Lx = NX*fabs(CosAngle) + NY*fabs(SinAngle);
@@ -235,8 +235,8 @@
   dY = MAX(0,-NX*SinAngle);
   /*
-  fprintf (stderr, "%f %f  -->  ", Xo, Yo);
+  gprint (GP_ERR, "%f %f  -->  ", Xo, Yo);
   X1 = Xo*CosAngle - Yo*SinAngle + dX;
   Y1 =  Xo*SinAngle + Yo*CosAngle + dY;
-  fprintf (stderr, "%f %f\n", X1, Y1);
+  gprint (GP_ERR, "%f %f\n", X1, Y1);
   */