This PR looks into updating the content of `--compress` option and plugin of `jlink`:
- Updates the `--compress` option description and warns that previous compression levels are deprecated to be removed in a future release. - Updates the `--plugin` option description and warns that previous compression levels are deprecated to be removed in a future release. ------------- Commit messages: - Update compression level explanation from jlink man page. Changes: https://git.openjdk.org/jdk/pull/28359/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28359&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8321139 Stats: 14 lines in 1 file changed: 7 ins; 0 del; 7 mod Patch: https://git.openjdk.org/jdk/pull/28359.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/28359/head:pull/28359 PR: https://git.openjdk.org/jdk/pull/28359
