[jdk18] RFR: 8279081: ProblemList jdk/jfr/event/oldobject/TestLargeRootSet.java on 2 platforms

[Daniel D.Daugherty]

A trivial fix to ProblemList jdk/jfr/event/oldobject/TestLargeRootSet.java on 2 platforms

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Commit messages:
 - 8279081: ProblemList jdk/jfr/event/oldobject/TestLargeRootSet.java on 2 platforms

Changes: https://git.openjdk.java.net/jdk18/pull/61/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18&pr=61&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8279081
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk18/pull/61.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18 pull/61/head:pull/61

PR: https://git.openjdk.java.net/jdk18/pull/61