[jdk21u-dev] RFR: 8363950: Incorrect jtreg header in TestLayoutVsICU.java

[Goetz Lindenmaier]

I backport this for parity with 21.0.11-oracle.

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Commit messages:
 - Backport 15dcbf0bc80b3c1ab09e44b9447c639780cce65e

Changes: https://git.openjdk.org/jdk21u-dev/pull/2529/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2529&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8363950
  Stats: 2716 lines in 2 files changed: 0 ins; 2716 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2529.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2529/head:pull/2529

PR: https://git.openjdk.org/jdk21u-dev/pull/2529