rescanned code and rebuilt small cleanup cleanup problems from code

* elfgcchack.h testapi.c doc/*: rescanned code and rebuilt
* xmlregexp.c: small cleanup
* include/libxml/schematron.h include/libxml/xmlexports.h
  include/libxml/xmlversion.h.in: cleanup problems from code scanner
Daniel
diff --git a/xmlregexp.c b/xmlregexp.c
index ffd9efb..3c975f0 100644
--- a/xmlregexp.c
+++ b/xmlregexp.c
@@ -7180,10 +7180,10 @@
  * Serialize the expression as compiled to the buffer
  */
 void
-xmlExpDump(xmlBufferPtr buf, xmlExpNodePtr exp) {
-    if ((buf == NULL) || (exp == NULL))
+xmlExpDump(xmlBufferPtr buf, xmlExpNodePtr expr) {
+    if ((buf == NULL) || (expr == NULL))
         return;
-    xmlExpDumpInt(buf, exp, 0);
+    xmlExpDumpInt(buf, expr, 0);
 }
 
 /**