Update names in license headers for unittests module
Github issue
chore
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
- * Authors: Juan Fumero, Michalis Papadimitriou
+ * Authors: Michalis Papadimitriou
*
*/
