void notify_other(int fd) {
	FILE* stream;
	int newfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
	if (newfd == -1)
		errExit("fcntl");
	stream = fdopen(newfd, "w");
	fprintf(stream, "arg_noroot=%d\n", arg_noroot);
	fflush(stream);
	fclose(stream);
}
void notify_other(int fd) {
	FILE* stream;
	int newfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
	if (newfd == -1)
		errExit("fcntl");
	stream = fdopen(newfd, "w");
	fprintf(stream, "arg_noroot=%d\n", arg_noroot);
	fflush(stream);
	fclose(stream);
}