RFR: 8265612: revise the help info for jmap histo command [v3]

Fri May 7 00:33:59 UTC 2021

On Fri, 7 May 2021 00:26:55 GMT, Serguei Spitsyn <sspitsyn at openjdk.org> wrote:

>> Lin Zang has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   fix indentation issue
>
> Hi Lin,
> I've added a comment with the /sponsor, so you can push it now.

Hi @sspitsyn，Thanks a lot！

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PR: https://git.openjdk.java.net/jdk/pull/3598