message: Update builtin_functions.cc
diff: @@ -1908,7 +1908,7 @@ static RegisterBuiltin registerToken_extract(token_extract, "token_extract");
  BoundFunction token_split(const std::vector<BoundSqlExpression> & args)
  {
  if (args.size() != 2)
  - throw HttpReturnException(400, "requires at two arguments");
  + throw HttpReturnException(400, "requires two arguments");
  return {[=] (const std::vector<ExpressionValue> & args,
  const SqlRowScope & scope) -> ExpressionValue
  