parseip(355.355.355.355) -> 99.99.99.99

correction to parseip.c attached; test program
included.

- erik

-----
#include <u.h>
#include <libc.h>
#include <ip.h>

void
usage(void)
{
	fprint(2, "usage: parseip [ip ...]\n");
	exits("usage");
}

void
main(int argc, char **argv)
{
	uchar ip[IPaddrlen];
	int i;
	uvlong n;

	fmtinstall('I', eipfmt);
	ARGBEGIN{
	default:
		usage();
	}ARGEND
	for(i = 0; i < argc; i++){
		n = parseip(ip, argv[i]);
		if(n != -1)
			print("%s -> %I\n", argv[i], ip);
		else
			print("%s -> -1\n", argv[i]);
	}
	exits("");
}