fix incorrect doctest output. closes #70
fix incorrect doctest output. closes #70
alexis-roche/register,arokem/nipy,alexis-roche/nireg,nipy/nireg,arokem/nipy,alexis-roche/register,arokem/nipy,alexis-roche/nipy,bthirion/nipy,bthirion/nipy,alexis-roche/nipy,alexis-roche/niseg,nipy/nipy-labs,nipy/nipy-labs,alexis-roche/nipy,alexis-roche/nipy,arokem/nipy,bthirion/nipy,alexis-roche/niseg,alexis-roche/nireg,bthirion/nipy,alexis-roche/register,nipy/nireg