fix(dotfiles): provide missing variable to `git-zip`
fix(dotfiles): provide missing variable to `git-zip`

Was outputting like this:

    [   OK   ]: wincent/foo
    [MODIFIED]: wincent/bar ->
    [   OK   ]: wincent/baz

wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent