Cloning this repository:

git clone git://gitorious.org/pre-openvpn/pre-openvpn.git pre-openvpn
cd pre-openvpn

Add this repository as a remote to an existing local repository:

git remote add pre-openvpn git://gitorious.org/pre-openvpn/pre-openvpn.git
git fetch pre-openvpn
git checkout -b my-local-tracking-branch pre-openvpn/master_or_other_branch