RFR: 8276787: Improve warning messages for -XX:+RecordDynamicDumpInfo [v2]

[Ioi Lam]

On Tue, 16 Nov 2021 17:00:05 GMT, Calvin Cheung <ccheung at openjdk.org> wrote:

>> Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   @calvinccheung comments
>
> The update looks good.

Thanks @calvinccheung and @tstuefe for the review.

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PR: https://git.openjdk.java.net/jdk/pull/6383