Daniel Barkalow [off-list ref] writes:
You don't pull in a few files, you apply the changes made in a few
commits:
git diff HEX_OF_NIT_FIX^ HEX_OF_NIT_FIX | git apply
If there's other stuff in the nit-fixing commit, shame on you, but you can
edit the patch before applying it to remove everything that's not what you
want.
Or just:
git cherry-pick HEX_OF_NIT_FIX
possibly followed by tweaking the result and running:
git commit --amend