This PR corrects the Locale language field description to clarify that extlang subtags are accepted and normalized into the language field, not excluded altogether.
--------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - init Changes: https://git.openjdk.org/jdk/pull/31696/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=31696&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8387259 Stats: 6 lines in 1 file changed: 4 ins; 0 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/31696.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/31696/head:pull/31696 PR: https://git.openjdk.org/jdk/pull/31696
