[Bug #1041501] Fix example code

Doc/lib/libsimplexmlrpc.tex

@@ -89,7 +89,7 @@ Example:
 
 \begin{verbatim}
 class MyFuncs:
-    def div(self, x, y) : return div(x,y)
+    def div(self, x, y) : return x // y
 
 
 server = SimpleXMLRPCServer(("localhost", 8000))