Fixed a few other problems raised by Charlie Bozeman. fixed the output

* DOCBparser.c parser.c valid.c include/libxml/parserInternals.h
  include/libxml/xmlerror.h include/libxml/xpathInternals.h:
  Fixed a few other problems raised by Charlie Bozeman.
* result/VC/ElementValid[5-7]: fixed the output
Daniel
diff --git a/include/libxml/xpathInternals.h b/include/libxml/xpathInternals.h
index ed39e36..ccbf53f 100644
--- a/include/libxml/xpathInternals.h
+++ b/include/libxml/xpathInternals.h
@@ -177,7 +177,7 @@
  *
  * Pushes an empty node-set on the context stack
  */
-#define xmlXPathReturnEmptyNodeSet(ctxt, ns)				\
+#define xmlXPathReturnEmptyNodeSet(ctxt)				\
     valuePush((ctxt), xmlXPathNewNodeSet(NULL))
 
 /**