<i18n dev> RFR: 8261279: sun/util/resources/cldr/TimeZoneNamesTest.java timed out

[Naoto Sato]

Please review this simple test case fix. By sampling locales to test, it reduces the possibility of the time out.

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Commit messages:
 - 8261279: sun/util/resources/cldr/TimeZoneNamesTest.java timed out

Changes: https://git.openjdk.java.net/jdk/pull/2465/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2465&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8261279
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2465.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2465/head:pull/2465

PR: https://git.openjdk.java.net/jdk/pull/2465