Re: [PATCH 1/1] Fix date checking in case if time was not initialized.

The thing that puzzles me is that nobody reported that the following
fail on their platforms (and they do not fail for me on platforms I
have to test in my real/virtual boxes).

Ok, check_parse calls function parse_date(), it calls
parse_date_basic(), where following code is present:

	memset(&tm, 0, sizeof(tm));
	tm.tm_year = -1;
	tm.tm_mon = -1;
	tm.tm_mday = -1;
	tm.tm_isdst = -1;
	tm.tm_hour = -1;
	tm.tm_min = -1;
	tm.tm_sec = -1;

Almost all fields are set to -1. A bit later match_multi_number() is
called. It parses the date and calls is_date() with partially filled
tm structure, where all time fields: tm_hour, tm_min, tm_sec are set
to -1. tm_to_time_t() function is called by is_date() and has special
check:

	if (tm->tm_hour < 0 || tm->tm_min < 0 || tm->tm_sec < 0)
		return -1;

So is_date() always return negative result for the text string where
date is placed before time like '2008-02-14 20:30:45'. It must fail on
other platforms as well.