RFR: 8218685: jlink --list-plugins needs to be readable and tidy [v5]

[Ian Graves]

On Tue, 29 Sep 2020 09:58:41 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Ian Graves has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Additional usage narrowing
>
> Marked as reviewed by alanb (Reviewer).

Updated JLinkTest to assert alphabetical order. With that I will /integrate .

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PR: https://git.openjdk.java.net/jdk/pull/305