Silence warning

git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@467918 13f79535-47bb-0310-9956-ffa450edef68

swig/perl/Transcoder/XMLExceptionHandler.cpp

@@ -124,6 +124,7 @@ XMLExceptionHandler::copyXMLException(const XMLException& e)
     }
     else
     {
-        croak("Unknown Exception type: %d", e.getType());
+        croak("Unknown Exception type: %d", e.getType());
+        return 0;
     }
 }