Cloning this repository:

git clone git://gitorious.org/~michaelsp/qt-creator/michaelsps-qt-creator.git michaelsps-qt-creator
cd michaelsps-qt-creator

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

git remote add michaelsps-qt-creator git://gitorious.org/~michaelsp/qt-creator/michaelsps-qt-creator.git
git fetch michaelsps-qt-creator
git checkout -b my-local-tracking-branch michaelsps-qt-creator/master_or_other_branch