Fix obvious typo.

git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@361 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/client/app.py

@@ -554,7 +554,7 @@ class Application(object):
                 conn.addPacket(p)
                 conn.expectMessage(msg_id)
                 self.dispatcher.register(conn, msg_id, self.getQueue())
-                self.txn_voted == 0
+                self.txn_voted = 0
             finally:
                 conn.unlock()