Fix syntax error in example

This was causing the API docs to fail to compile with:

jscomp/others/js_re.mli : Syntax error in text:
{[
(* Finds and prints successive matches *)

let re = [%re "/ab*/g"] in
let str = "abbcdefabh" in

let break = ref false in
while not !break do
  match re |> Js.Re.exec str with
  | None -> break := true
  | Some result ->
    Js.Nullable.iter (Js.Re.captures result).(0) ((fun match_ ->
      let next = string_of_int (Js.Re.lastIndex re) in
      Js.log ("Found " ^ match_ ^ ". Next match starts at " ^ next)) [
line 13, character 70:
      Js.log ("Found " ^ match_ ^ ". Next match starts at " ^ next)) [
                                                                      ^

Signed-off-by: Zach Ploskey <zach@ploskey.com>

Author: zploskey

Diff for: jscomp/others/js_re.mli

@@ -127,7 +127,7 @@ while not !break do
   | Some result ->
     Js.Nullable.iter (Js.Re.captures result).(0) ((fun match_ ->
       let next = string_of_int (Js.Re.lastIndex re) in
-      Js.log ("Found " ^ match_ ^ ". Next match starts at " ^ next)) [@bs])
+      Js.log ("Found " ^ match_ ^ ". Next match starts at " ^ next)))
 done
 ]}