add po and derived test object file to .cvsignore
add po and derived test object file to .cvsignore

flatzo/popt,flatzo/popt,GerHobbelt/POPT,GerHobbelt/POPT,devzero2000/POPT,devzero2000/POPT,GerHobbelt/POPT,devzero2000/POPT