8339644: Improve parsing of Day/Month in tzdata rules

[dimitryc]

The backport is a prerequisite for timezone data update to 2024b. Targeting the PR to jdk8u-dev repo (April release).

The changes are the same as the changes proposed in openjdk/jdk8u#64 but now targeted to https://github.com/openjdk/jdk8u-dev

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8339644 needs maintainer approval

Issue

• JDK-8339644: Improve parsing of Day/Month in tzdata rules (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk8u-dev.git pull/615/head:pull/615
$ git checkout pull/615

Update a local copy of the PR:
$ git checkout pull/615
$ git pull https://git.openjdk.org/jdk8u-dev.git pull/615/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 615

View PR using the GUI difftool:
$ git pr show -t 615

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk8u-dev/pull/615.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back dcherepanov! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[mlbridge]

Webrevs

• 00: Full (46fc671f)