RFR: 8303249 JFR: Incorrect description of dumponexit

[Erik Gahlin]

Could I have review of PR that fixes the description for -XX:StartFlightRecording:dumponexit=...

Testing: jdk/jdk/jfr

Thanks
Erik

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Commit messages:
 - Initial

Changes: https://git.openjdk.org/jdk/pull/12766/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12766&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8303249
  Stats: 3 lines in 2 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/12766.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12766/head:pull/12766

PR: https://git.openjdk.org/jdk/pull/12766