Function errx

ccan/ccan/err/err.c:31–41

}

void NORETURN errx(int eval, const char *fmt, ...)
{
	va_list ap;

	fprintf(stderr, "%s: ", progname);
	va_start(ap, fmt);
	vfprintf(stderr, fmt, ap);
	va_end(ap);
	fprintf(stderr, "\n");
	exit(eval);
}

void warn(const char *fmt, ...)
{