<i18n dev> RFR: 8339644: Improve parsing of Day/Month in tzdata rules

Fri Sep 6 17:49:37 UTC 2024

Fixing TZDB build tool to accommodate full month/day names. Recently released tzdb2024b included (inadvertently) full month name "April", which is allowed by the spec (zic.8), but never used. This will cause build failure of the JDK. The proposed fix is manually tested by modifying the tzdb files to include full month names, and confirmed the successful build of the JDK.

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Commit messages:
 - initial commit

Changes: https://git.openjdk.org/jdk/pull/20893/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20893&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8339644
  Stats: 19 lines in 1 file changed: 0 ins; 0 del; 19 mod
  Patch: https://git.openjdk.org/jdk/pull/20893.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20893/head:pull/20893

PR: https://git.openjdk.org/jdk/pull/20893