Mark 3 tests as flagless to don't run them if not needed. Also, small clean up.
------------- Commit messages: - Merge branch 'master' of https://github.com/openjdk/jdk into 8314828 - 8314828: Mark 3 jcmd comman-line options test as vm.flagless Changes: https://git.openjdk.org/jdk/pull/15407/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15407&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8314828 Stats: 6 lines in 3 files changed: 0 ins; 1 del; 5 mod Patch: https://git.openjdk.org/jdk/pull/15407.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/15407/head:pull/15407 PR: https://git.openjdk.org/jdk/pull/15407
