in
aux 0 l
-let split_nth msg n l =
+let split_nth n l =
let rec aux acc n l =
match n, l with
| 0, _ -> List.rev acc, l
- | n, [] -> raise (Failure ("HExtlib.split_nth: " ^ msg))
+ | n, [] -> raise (Failure "HExtlib.split_nth")
| n, hd :: tl -> aux (hd :: acc) (n - 1) tl in
aux [] n l