remove __PRETTY_FUNCTION__ from debug output
remove __PRETTY_FUNCTION__ from debug output

If anything this only made the output less pretty...

MRtrix3/mrtrix3,MRtrix3/mrtrix3,MRtrix3/mrtrix3,MRtrix3/mrtrix3,MRtrix3/mrtrix3,MRtrix3/mrtrix3