RFR: 8329825: Clarify the value type for java.net.SocketOptions.SO_LINGER

[Jaikiran Pai]

Can I please get a review of this doc-only change which clarifies the value type for the `java.net.SocketOptions.SO_LINGER` option?

-------------

Commit messages:
 - 8329825: Clarify the value type for java.net.SocketOptions.SO_LINGER

Changes: https://git.openjdk.org/jdk/pull/19243/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19243&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329825
  Stats: 5 lines in 1 file changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/19243.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19243/head:pull/19243

PR: https://git.openjdk.org/jdk/pull/19243