I'd like to clean up my local repository, which has a ton of old branches: for example `3.2`, `3.2.1`, `3.2.2`, etc.

I was hoping for a sneaky way to remove a lot of them at once. Since they mostly follow a dot release convention, I thought maybe there was a shortcut to say:

```
git branch -D 3.2.*

```

and kill all 3.2.x branches.

I tried that command and it, of course, didn't work.