rem: int netcat_flag_count()
add: int netcat_flag_count(void)
context: int netcat_flag_count(){  register char c;  register int i;  int ret = 0;  assert(flagset);  /* scan the block for set bits, if found, it counts them */  for (i = 0; i < flagset_len; i++) {    c = flagset[i];    while (c) {      ret -= (c >> 7);		/* FIXME! WHY do I have to -=? */      c <<= 1;    }  }  return ret;}