collada_urdf: fixing invalid urdf in test
collada_urdf: fixing invalid urdf in test

robotology-dependencies/urdfdom,keulYSMB/urdfdom,shadow-robot/urdfdom,keulYSMB/urdfdom,keulYSMB/urdfdom,shadow-robot/urdfdom,shadow-robot/urdfdom,keulYSMB/urdfdom,shadow-robot/urdfdom,robotology-dependencies/urdfdom,robotology-dependencies/urdfdom,robotology-dependencies/urdfdom