RFR: 8282713: Invalid copyright notice in new test added by JDK-8275715

[Masanori Yano]

I would like to fix the missing comma in the copyright of the test added in JDK-8275715.
Could you please review the fix?

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Commit messages:
 - 8282713: Invalid copyright notice in new test added by JDK-8275715

Changes: https://git.openjdk.java.net/jdk/pull/7716/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7716&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282713
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7716.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7716/head:pull/7716

PR: https://git.openjdk.java.net/jdk/pull/7716