in_winevtlog: Use -1 at the last argument for auto-detection of DST

FileTimeToLocalFileTime and SystemTimeToTzSpecificLocalTimeEx
automatically convert between ST and DST.
These functions are working well for DST conversions.

Signed-off-by: Hiroshi Hatake <[email protected]>

Author: cosmo0920

plugins/in_winevtlog/pack.c

@@ -207,7 +207,7 @@ static int pack_systemtime(struct winevtlog_config *ctx, SYSTEMTIME *st)
                         st_local.wDay,
                         st_local.wMonth-1,
                         st_local.wYear-1900,
-                        st_local.wDayOfWeek, 0, 0};
+                        st_local.wDayOfWeek, 0, -1};
         len = _strftime_l(buf, 64, FORMAT_ISO8601, &tm, locale);
         if (len == 0) {
             flb_errno();
@@ -243,7 +243,7 @@ static int pack_filetime(struct winevtlog_config *ctx, ULONGLONG filetime)
     ft.dwLowDateTime = timestamp.LowPart;
     FileTimeToLocalFileTime(&ft, &ft_local);
     if (FileTimeToSystemTime(&ft_local, &st)) {
-        struct tm tm = {st.wSecond, st.wMinute, st.wHour, st.wDay, st.wMonth-1, st.wYear-1900, st.wDayOfWeek, 0, 0};
+        struct tm tm = {st.wSecond, st.wMinute, st.wHour, st.wDay, st.wMonth-1, st.wYear-1900, st.wDayOfWeek, 0, -1};
         len = _strftime_l(buf, 64, FORMAT_ISO8601, &tm, locale);
         if (len == 0) {
             flb_errno();