RFR: JDK-8299224: TestReporterStreams.java has bad indentation for legal header

[Jonathan Gibbons]

Please review a trivial fix to update the indentation of the legal header in a test file.

-------------

Commit messages:
 - JDK-8299224: TestReporterStreams.java has bad indentation for legal header

Changes: https://git.openjdk.org/jdk/pull/11757/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11757&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8299224
  Stats: 21 lines in 1 file changed: 0 ins; 0 del; 21 mod
  Patch: https://git.openjdk.org/jdk/pull/11757.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11757/head:pull/11757

PR: https://git.openjdk.org/jdk/pull/11757