Fix argument raise LmwLoginFailure

lmwsip/__init__.py

@@ -237,7 +237,7 @@ Raises a LmwLoginFailure exception on failure
         self.send(li)
         d = self.recv()
         if (d[0] != '!'):
-            raise LmwLoginFailure(self.user + ":" + d)
+            raise LmwLoginFailure(self.user, d)
 
     def ti(self):
         """ti()