RFR: 8263732: ProblemList serviceability/sa/ClhsdbSymbol.java on ZGC

[Daniel D.Daugherty]

A trivial fix to ProblemList serviceability/sa/ClhsdbSymbol.java on ZGC in
order to reduce the noise in the JDK17 CI.

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Commit messages:
 - 8263732: ProblemList serviceability/sa/ClhsdbSymbol.java on ZGC

Changes: https://git.openjdk.java.net/jdk/pull/3050/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3050&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8263732
  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3050.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3050/head:pull/3050

PR: https://git.openjdk.java.net/jdk/pull/3050