bpo-43354: xmlrpc: Fix type documentation for Fault.faultCode (GH-24707)



The type of `faultCode` has to be an `int` instead of a `str`.

cf http://xmlrpc.com/spec.md

Pinging @pganssle
diff --git a/Doc/library/xmlrpc.client.rst b/Doc/library/xmlrpc.client.rst
index 3240381..51279b3 100644
--- a/Doc/library/xmlrpc.client.rst
+++ b/Doc/library/xmlrpc.client.rst
@@ -378,7 +378,7 @@
 
    .. attribute:: faultCode
 
-      A string indicating the fault type.
+      An int indicating the fault type.
 
 
    .. attribute:: faultString