Make explicit the node param in init_wallet()

test/functional/rpc_invalid_address_message.py

@@ -90,7 +90,7 @@ class InvalidAddressErrorMessageTest(BitcoinTestFramework):
         self.test_validateaddress()
 
         if self.is_wallet_compiled():
-            self.init_wallet(0)
+            self.init_wallet(node=0)
             self.test_getaddressinfo()