<AWT Dev> [jdk17] RFR: 8269984: [macos] JTabbedPane title looks like disabled

[Alexander Zuev]

Fixed the version string parsing to work correctly on macOS 11.x and beyond

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Commit messages:
 - 8269984: [macos] JTabbedPane title looks like disabled

Changes: https://git.openjdk.java.net/jdk17/pull/269/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17&pr=269&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8269984
  Stats: 26 lines in 1 file changed: 17 ins; 2 del; 7 mod
  Patch: https://git.openjdk.java.net/jdk17/pull/269.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17 pull/269/head:pull/269

PR: https://git.openjdk.java.net/jdk17/pull/269