Exporting patches without prerequisite patch id

[kiasoc5]

Hi Guix,

I have some commits on my local guix repo like this:

(master) HEAD -> A -> B -> C

When I do `git format-patch -3 --base=auto` I get prerequisite patch
ids in some of the patches. But I want to each patch to depend only on
HEAD. In other words I want to export patches like so:

HEAD -> A
HEAD -> B
HEAD -> C

How do I do this?