Integrated: 8342839: Malformed copyright in StringNameTable since JDK-8342806

[Claes Redestad]

Trivially add a missing comma to satisfy Oracle-internal build check.

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Commit messages:
 - Missing comma

Changes: https://git.openjdk.org/jdk/pull/21640/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21640&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342839
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/21640.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21640/head:pull/21640

PR: https://git.openjdk.org/jdk/pull/21640