RFR: Add material about updating the CSR when a backout occurs. [v2]

[Stuart Marks]

On Wed, 9 Apr 2025 21:49:25 GMT, Jesper Wilhelmsson <jwilhelm at openjdk.org> wrote:

>> Stuart Marks has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Keep paragraph as a single line (per Jesper).
>
> src/guide/testing-the-jdk.md line 339:
> 
>> 337: 
>> 338: To backout a change with git, use `git revert`. This will apply (commit) the anti-delta of the change.
>> 339: Then proceed as usual with creating a PR and getting it reviewed.
> 
> For consistency I'd prefer if this sentence was on the same line as the previous, since this is not a new paragraph. Not critical, but if you have the extra time :-)

Can do. I want to wait for a review from @jddarcy as well.

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PR Review Comment: https://git.openjdk.org/guide/pull/148#discussion_r2036190058