What would be the output if this function is ran on ("list_users", "")?
int tokenize(char *cmd, char **cmd_argv) {
    int cmd_argc = 0;
    char *next_token = strtok(cmd, DELIM);
    while (next_token != NULL) {
        if (cmd_argc >= INPUT_ARG_MAX_NUM - 1) {
            error("Too many arguments!");
            cmd_argc = 0;
            break;
        }
        cmd_argv[cmd_argc] = next_token;
        cmd_argc++;
        next_token = strtok(NULL, DELIM);
    }

    return cmd_argc;
}