workaround for DBG_UTIL XML correctness checks

The current check will always be hit as the StartXmlElement does not use
a call that puts the element on the stack. So copy the pattern for the
EndXmlElement class.

However we should work on getting rid of these ugly hacks.

Change-Id: Id1141f4afc78a0cae1e4b7accae76e6ae08b77a7

sc/source/filter/xcl97/XclExpChangeTrack.cxx

@@ -1338,7 +1338,8 @@ public:
 
 void EndXmlElement::SaveXml( XclExpXmlStream& rStrm )
 {
-    rStrm.GetCurrentStream()->endElement( mnElement );
+    sax_fastparser::FSHelperPtr pStream = rStrm.GetCurrentStream();
+    pStream->write("</")->writeId(mnElement)->write(">");
 }
 
 class EndHeaderElement : public EndXmlElement