RFR: JDK-8273745: VerifyLocale.java occasionally times out

[Jonathan Gibbons]

Please review a simple test-only update, to reduce the number of locales tested, and thereby reduce the number of javadoc-invocations

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Commit messages:
 - JDK-8273745: VerifyLocale.java occasionally times out

Changes: https://git.openjdk.java.net/jdk/pull/5814/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5814&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8273745
  Stats: 31 lines in 1 file changed: 23 ins; 2 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5814.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5814/head:pull/5814

PR: https://git.openjdk.java.net/jdk/pull/5814