bpo-15999: Always pass bool instead of int to the expat parser. (GH-15622)

diff --git a/Lib/xmlrpc/client.py b/Lib/xmlrpc/client.py
index 246ef27..b4b2941 100644
--- a/Lib/xmlrpc/client.py
+++ b/Lib/xmlrpc/client.py
@@ -442,7 +442,7 @@
         target.xml(encoding, None)
 
     def feed(self, data):
-        self._parser.Parse(data, 0)
+        self._parser.Parse(data, False)
 
     def close(self):
         try: