subreaper, sets PR_SET_CHILD_SUBREAPER so you can have a nice looking process tree in htop

main.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/wait.h>
#include <sys/prctl.h>

int main(int argc, char *argv[]) {
	if(argc < 2) {
		puts("Insufficent parameters");
		exit(EXIT_FAILURE);
	};


	if(prctl(PR_SET_CHILD_SUBREAPER, 1)) {
		puts("Failed to become a subreaper");
		exit(EXIT_FAILURE);
	};

	if(fork() == 0)
		execvp(argv[1], &argv[2]);

	while(errno != ECHILD)
		wait(NULL);

	exit(EXIT_SUCCESS);
}