syscall_arg__set_ret_scnprintf
void syscall_arg__set_ret_scnprintf(struct syscall_arg *arg,
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_open_flags);
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getfd);
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fd);
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_pid);
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getlease);