Fix FTBFS on Fedora 19

lib/kformula/creationstrategy.h

@@ -86,7 +86,7 @@ public:
  */
 class OrdinaryCreationStrategy : public ElementCreationStrategy {
 public:
-    virtual BasicElement* createElement( TQString type, const TQDomElement& element = 0 );
+    virtual BasicElement* createElement( TQString type, const TQDomElement& element );
 
     virtual TextElement* createTextElement( const TQChar& ch, bool symbol=false );
     virtual EmptyElement* createEmptyElement();