--- callproc_old.c	Thu Oct 28 20:01:58 2004
+++ callproc.c	Wed Feb 02 11:41:24 2005
@@ -242,7 +242,7 @@
 		default:
 			printf("error %d\n", code);
 			PyErr_Format(PyExc_WindowsError,
-				     "exception code 0x%08X",
+				     "exception code 0x%08x",
 				     code);
 			break;
 		}