Question: Can the target branch be specified for the generated PRs?

git-xargs seems to be exactly what I need to use. I've been testing it to update files and automatically generate pull requests.

What I have seen is that the pull requests generated are always between the branch specified with "--branch-name" and "master".

Is it possible to specify that target branch to be different to "master"? Or a way to specify that the target should be the default branch (which is not always "master" on some of our repos).

Thanks.