fixed problem with include path (third time's a charm?)

* genChRange.py, chvalid.c: fixed problem with include
  path (third time's a charm?)
diff --git a/chvalid.c b/chvalid.c
index 604b926..ef64f76 100755
--- a/chvalid.c
+++ b/chvalid.c
@@ -5,12 +5,12 @@
  * This file is automatically generated from the cvs source
  * definition files using the genChRanges.py Python script
  *
- * Generation date: Sat Oct 11 23:30:43 2003
+ * Generation date: Sat Oct 11 23:54:34 2003
  * Sources: chvalid.def
  * William Brack <wbrack@mmm.com.hk>
  */
 
-#include "chvalid.h"
+#include <libxml/chvalid.h>
 
 /*
  * The initial tables ({func_name}_tab) are used to validate whether a