[tz] Wrong entry for Israel tz information

[AvigdorFin]

Greetings,

It seems we found an error in Israel DST transition for the year 1988.
Please check if I'm right and correct me it I'm wrong.

This is the current information for the year,
the transition has happened according to this on Friday night, changing to
Saturday.

$ zdump -v Israel | grep 1988
Israel  Fri Apr  8 21:59:59 1988 UTC = Fri Apr  8 23:59:59 1988 IST isdst=0
gmtoff=7200
Israel  Fri Apr  8 22:00:00 1988 UTC = Sat Apr  9 01:00:00 1988 IDT isdst=1
gmtoff=10800
Israel  Fri Sep  2 20:59:59 1988 UTC = Fri Sep  2 23:59:59 1988 IDT isdst=1
gmtoff=10800
Israel  Fri Sep  2 21:00:00 1988 UTC = Fri Sep  2 23:00:00 1988 IST isdst=0
gmtoff=7200

I check the Parliament ( Knesset ) records and there it's stated that the
transition should take place on Saturday night, when the Sabbath ends and
changes to Sunday.

The definition in the source file is as follows:
Rule    Zion    1988    only    -       Apr      9      0:00    1:00    D
Rule    Zion    1988    only    -       Sep      3      0:00    0       S

Which result with the times above.

When changing the source to be:
Rule    Zion    1988    only    -       Apr     10      0:00    1:00    D
Rule    Zion    1988    only    -       Sep      4      0:00    0       S

And compiling it with zic we get
$ zdump -v Israel | grep 1988
Israel  Sat Apr  9 21:59:59 1988 UTC = Sat Apr  9 23:59:59 1988 IST isdst=0
gmtoff=7200
Israel  Sat Apr  9 22:00:00 1988 UTC = Sun Apr 10 01:00:00 1988 IDT isdst=1
gmtoff=10800
Israel  Sat Sep  3 20:59:59 1988 UTC = Sat Sep  3 23:59:59 1988 IDT isdst=1
gmtoff=10800
Israel  Sat Sep  3 21:00:00 1988 UTC = Sat Sep  3 23:00:00 1988 IST isdst=0
gmtoff=7200

And the transition is as decided by the parliament on Saturday night toward
Sunday.
I also added the following lines to the source file

Link    Asia/Jerusalem Israel
Link    Asia/Jerusalem IST-2IDT

Please check me out and if I'm right, correct the next release of the
tzdata file.

I don't know how many people and organizations are still interested in data
from 1988, but the record should be set right.

Thanks in advance.
-- 
Best Regards,
Avigdor
----
Email:   AvigdorFin at g <Avigdor.Finkelstein at tangram-soft.co.il>mail.com
              ISRAEL
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