RFR: 1463: Include starting branch in back port instructions [v3]

[Guoxiong Li]

On Sat, 6 Aug 2022 10:39:44 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 one additional commit since the last revision:
> 
>   Tweak the message again.

Thanks for your comments. I add some comments to state the commands and to clarify the usage. Please see the newest code. One issue is that the content may be too long.

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