Is leap year calculation omitted?

[DeviceTreeBlob]

Hi,all
in plugins/sudoers/getdate.c

static time_t
Convert(time_t Month, time_t Day, time_t Year, time_t Hours, time_t Minutes,
    time_t Seconds, MERIDIAN Meridian, DSTMODE DSTmode)
{
    static int DaysInMonth[12] = {
	31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
    };
    struct tm	tm;
    time_t	tod;
    time_t	Julian;
    int		i;

    if (Year < 0)
	Year = -Year;
    if (Year < 69)
	Year += 2000;
    else if (Year < 100) {
	Year += 1900;
	if (Year < EPOCH)
		Year += 100;
    }
    DaysInMonth[1] = Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0)
		    ? 29 : 28;
    /* 32-bit time_t cannot represent years past 2038 */
    if (Year < EPOCH || (sizeof(time_t) == sizeof(int) && Year > 2038)
     || Month < 1 || Month > 12
     /* Lint fluff:  "conversion from long may lose accuracy" */
     || Day < 1 || Day > DaysInMonth[--Month])
	return -1;

    for (Julian = Day - 1, i = 0; i < Month; i++)
	Julian += DaysInMonth[i];
    for (i = EPOCH; i < Year; i++)
	Julian += 365 + (i % 4 == 0);
    Julian *= SECSPERDAY;
    Julian += yyTimezone * 60L;
    if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0)
	return -1;
    Julian += tod;
    if (DSTmode == DSTon
     || (DSTmode == DSTmaybe && localtime_r(&Julian, &tm) && tm.tm_isdst))
	Julian -= 60 * 60;
    return Julian;

for (i = EPOCH; i < Year; i++)
Julian += 365 + (i % 4 == 0); //Only %4 was calculated. %100 and %400 were not calculated

Should it be Julian += 365 + (i % 4 == 0 && (i % 100 != 0 || i % 400 == 0)); ?