[jdk21u] RFR: 8311514: Incorrect regex in TestMetaSpaceLog.java

[Elif Aslan]

[JDK-8311514](https://bugs.openjdk.org/browse/JDK-8311514)Incorrect regex in TestMetaSpaceLog.java

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Commit messages:
 - Backport 9084b6c9d5b6550059fee39d6335fed467f1c45c

Changes: https://git.openjdk.org/jdk21u/pull/159/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=159&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8311514
  Stats: 7 lines in 1 file changed: 6 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u/pull/159.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/159/head:pull/159

PR: https://git.openjdk.org/jdk21u/pull/159