bug#52349: 29.0.50; vc-git and diff-mode: stage hunks

[Juri Linkov]

> A minor comment:
>
>> +(defun vc-diff-patch ()
>> +  (let ((buffer "*vc-diff*")
>> +        (patch-string vc-patch-string))
>> +    (vc-setup-buffer buffer)
>> +    (set-buffer buffer)
>
> vc-setup-buffer already did set-buffer?

Thanks for noticing, will be fixed in the next version.
This is because vc-diff-patch tries to duplicate code
from vc-diff-internal since the same function can't
be reused for vc-diff-patch.