RFR: JDK-8318957: enhance agentlib:jdwp help output by info about allow option

Fri Oct 27 08:25:40 UTC 2023

The allow option of agentlib:jdwp has been introduced a long time ago (see JDK-8061228) and is documented here :
https://docs.oracle.com/en/java/javase/17/docs/specs/jpda/conninv.html#oracle-vm-invocation-options
However it is still missing in the agentlib:jdwp help output and should be added there too.

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Commit messages:
 - JDK-8318957

Changes: https://git.openjdk.org/jdk/pull/16393/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16393&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8318957
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/16393.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16393/head:pull/16393

PR: https://git.openjdk.org/jdk/pull/16393