rem: printf("/"); print_tcpf(mask);
context: print_flags(u_int8_t mask, u_int8_t cmp, int invert, int numeric){	if (mask || invert) {		printf("flags:%s", invert ? "!" : "");		if (numeric)			printf("0x%02X/0x%02X ", mask, cmp);		else {			print_tcpf(cmp);			printf("/");			print_tcpf(mask);			printf(" ");		}	}}