RFR: 8340334: Update jcmd VM.events max parameter to be INT

[Leonid Mesnik]

The  jcmd VM.events max parameter type is changed to INT.
Also,I noted the max <= 0 is ignored, so I updated documentation and set "0" as a default value.
The jcmd exists if parameter is negative now.

The `max` is `int` while really it is the unsigned int. However I don't think it makes sense to change it to `size_t` or `unsigned int` in all places where 'max' is used.

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Commit messages:
 - max_value -> max
 - parameter changed to log

Changes: https://git.openjdk.org/jdk/pull/22224/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22224&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340334
  Stats: 10 lines in 2 files changed: 0 ins; 4 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/22224.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22224/head:pull/22224

PR: https://git.openjdk.org/jdk/pull/22224