update to the timezone database (Chile)

Because of the same drought , the government decided to end DST later, on April 3, (one-time change) New line on the file: Rule Chile 1999 only - Apr 4 0:00 0 - -- +--------------------------------------+------------------------------------+ | Julio I. Pacheco Troncoso | "Todo programa no trivial contiene | | Ingenieria (E) en Comp. e Inf. | al menos un error." | | Instituto Profesional Virginio Gomez | PGP key: | | mailto:jpacheco@atenea.ipvg.udec.cl | http://www.ipvg.udec.cl/~jpacheco | +--------------------------------------+------------------------------------+