Fixing a regression introduced by [JDK-8381379](https://bugs.openjdk.org/browse/JDK-8381379). It now correctly formats offset-only temporals with generic zone names.
--------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - initial commit Changes: https://git.openjdk.org/jdk/pull/33075/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=33075&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8392994 Stats: 20 lines in 2 files changed: 13 ins; 0 del; 7 mod Patch: https://git.openjdk.org/jdk/pull/33075.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/33075/head:pull/33075 PR: https://git.openjdk.org/jdk/pull/33075
