Clarify the help output for VM.class_hierarchy. The old jcmd help output was misleading, and because of this got translated incorrectly for the man page.
------------- Commit messages: - Fix VM.class_hierarchy help output and man page. Changes: https://git.openjdk.java.net/jdk/pull/6845/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6845&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8276982 Stats: 6 lines in 2 files changed: 1 ins; 0 del; 5 mod Patch: https://git.openjdk.java.net/jdk/pull/6845.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/6845/head:pull/6845 PR: https://git.openjdk.java.net/jdk/pull/6845
