RFR: 8372348: Adjust some UL / JFR string deduplication output messages [v2]

[Andreas Steiner]

On Mon, 15 Dec 2025 14:55:53 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> ` total avg of  deduped / new unknown bytes ` maybe ? That mentions what is used for the computation .
>> We could also print the values of  total deduped and new to make it more clear .
>
>> Adding total will be helpful already, but why are not the numbers printed on which the avg is based? Because otherwise you don't get an impression what the percentage mean.
> 
> I added some more output, please check .

I would appreciate the additional output to get a better understanding of the provided total avg.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28455#discussion_r2622478208