Fix memory leak.

examples/pybullet/pybullet.c

@@ -6945,6 +6945,7 @@ static PyObject* pybullet_calculateInverseKinematics(PyObject* self,
 			{
 				b3CalculateInverseKinematicsSetJointDamping(command, numJoints, jointDamping);
 			}
+			free(jointDamping);
 
 			statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);