RFR: 8305113: (tz) Update Timezone Data to 2023c

[Yoshiki Sato]

On Fri, 31 Mar 2023 22:06:34 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>> Pleases review this PR. 
>> The PR includes the following changes.
>> - tzdata 2023c
>> - Hack code to deal with Cairo's DST end, which is same as done in 2014g([JDK-8049343](https://bugs.openjdk.org/browse/JDK-8049343)).  To work around the the limitation of JSR 310 compiler, where the time 24:00 is recognized as 0:00 in the previous day.
>
> src/java.base/share/classes/sun/util/calendar/ZoneInfoFile.java line 742:
> 
>> 740: 
>> 741:         return new ZoneInfo(zoneId, rawOffset, dstSavings, checksum, transitions,
>> 742:                 offsets, params, willGMTOffsetChange);
> 
> do we need to change it here?

No need.  It was reformatted by IntelliJ editor.  The original code is better from perspective of the OpenJDK's standard code style.

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PR Review Comment: https://git.openjdk.org/jdk/pull/13255#discussion_r1156543028