Simple tweak to jcmd Thread.print help message jdk_svc test group ran and green
------------- Commit messages: - 8370071 Changes: https://git.openjdk.org/jdk/pull/27861/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27861&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8370071 Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/27861.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/27861/head:pull/27861 PR: https://git.openjdk.org/jdk/pull/27861
