RFR: 1463: Include starting branch in back port instructions [v4]

[David Holmes]

On Mon, 8 Aug 2022 18:12:35 GMT, Guoxiong Li <gli at openjdk.org> wrote:

>> Hi all,
>> 
>> This patch adds the suggested git command about fetching the newest code 
>> from the target branch before solving the conflicts.
>> 
>> Thanks for taking the time to review.
>> 
>> Best Regards,
>> -- Guoxiong
>
> Guoxiong Li has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Add more comments to state the commands
>  - Fix test cases.

The latest version with additional comments seems okay.

FWIW I normally use `git pull`, `git sync` and `git switch` rather than `git fetch` and `git checkout`. So I have to interpret these instructions anyway, and the new comments help with that.

Thanks.

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PR: https://git.openjdk.org/skara/pull/1344