static void nice_time(double sec,char *buff,bool part_second)
{
  ulong tmp;
  if (sec >= 3600.0*24)
  {
    tmp=(ulong) floor(sec/(3600.0*24));
    sec-=3600.0*24*tmp;
    buff=int10_to_str((long) tmp, buff, 10);
    buff=strmov(buff,tmp > 1 ? " days " : " day ");
  }
  if (sec >= 3600.0)
  {
    tmp=(ulong) floor(sec/3600.0);
    sec-=3600.0*tmp;
    buff=int10_to_str((long) tmp, buff, 10);
    buff=strmov(buff,tmp > 1 ? " hours " : " hour ");
  }
  if (sec >= 60.0)
  {
    tmp=(ulong) floor(sec/60.0);
    sec-=60.0*tmp;
    buff=int10_to_str((long) tmp, buff, 10);
    buff=strmov(buff," min ");
  }
  if (part_second)
    sprintf(buff,"%.2f sec",sec);
  else
    sprintf(buff,"%d sec",(int) sec);
}