RFR: 8318730: MonitorVmStartTerminate.java still times out after JDK-8209595

[Kevin Walls]

This issue was hard to reproduce or had stopped happening, but was likely a failure to capture the main arguments from a monitored process, caused by slow startups e.g. -Xcomp.  Recent failures seen in Graal testing are most likely the same issue and increasing ARGS_ATTEMPTS has been seen to resolve it.

Whlie updating the test, fix the very verbose logging: it doesn't need to log, every second, how many nanos it has waited.
This has made logs from timeouts hardly usable as they are truncated and may miss critical info.  Also, group the "tunable" constants together.

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Commit messages:
 - JDK-8318730: MonitorVmStartTerminate.java still times out after JDK-8209595

Changes: https://git.openjdk.org/jdk/pull/24843/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24843&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8318730
  Stats: 10 lines in 1 file changed: 5 ins; 3 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/24843.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24843/head:pull/24843

PR: https://git.openjdk.org/jdk/pull/24843