Incorporate the latest IANA language subtag registry definition (2023-02-14).
------------- Commit messages: - Add missing JBS #s to test header - IANA update 2/14/23 Changes: https://git.openjdk.org/jdk/pull/12699/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12699&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8302512 Stats: 9 lines in 2 files changed: 6 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/12699.diff Fetch: git fetch https://git.openjdk.org/jdk pull/12699/head:pull/12699 PR: https://git.openjdk.org/jdk/pull/12699
