RFR: 8346248: serviceability/dcmd/vm/{SystemMapTest.java,SystemMapTest.java} failing on macos-aarch64

[Stefan Karlsson]

[JDK-8319875](https://bugs.openjdk.org/browse/JDK-8319875) updated jcmd System.map to support macOS but the tests are now failing on macosx-aarch64 with ZGC.

serviceability/dcmd/vm/SystemDumpMapTest.java
serviceability/dcmd/vm/SystemMapTest.java

test SystemMapTest.jmx(): failure
java.lang.RuntimeException: '0x\\p{XDigit}+-0x\\p{XDigit}+ +\\d+ +[\-rwx]*/[\-rwx]* +(pvt|tsh-shared) +(0x\\p{XDigit}+|\\d+) +JAVAHEAP.*' missing from stdout/stderr
at jdk.test.lib.process.OutputAnalyzer.shouldMatch(OutputAnalyzer.java:372)
at SystemMapTest.run(SystemMapTest.java:50)
at SystemMapTest.jmx(SystemMapTest.java:57)

The output from my runs says `tsh` and not `tsh-shared`. The following change seems to work on my machine and on macosx-aarch64 and macosx-x64 in our CI pipeline.

@stooke @tstuefe Do you think this looks reasonable or was there some systems that reported this as pvt-shared?

-------------

Commit messages:
 - 8346248: serviceability/dcmd/vm/{SystemMapTest.java,SystemMapTest.java} failing on macos-aarch64

Changes: https://git.openjdk.org/jdk/pull/22759/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22759&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8346248
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22759.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22759/head:pull/22759

PR: https://git.openjdk.org/jdk/pull/22759