RFR: 8319948: jcmd man page needs to be updated [v4]

[Alan Bateman]

On Wed, 3 Jan 2024 07:19:03 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Please review these missing updates to the `jcmd` manpage - see JBS issue for details.
>> 
>> I also fixed the sub-command ordering in a few places and a couple of minor formatting fixes.
>> 
>> Thanks to @tstuefe for collating the initial information on what was missing. I used to `jcmd help <cmd>` option to compare the help text with the manpage text and adjusted the manpage accordingly (and found a few more omissions - some of which will be fixed by follow up RFE by the respective owners).
>
> David Holmes has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fixed Compiler.directives_add

Marked as reviewed by alanb (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/17213#pullrequestreview-1801482143