A lawyer was sanctioned for his part in an attempt to manipulate the federal trial court’s electronic filing system to falsify the date on a pleading.In a written opinion last week, U.S. Magistrate Judge Jeffrey Cole ordered Arthur C. Johnson II of Merrillville, Ind., and his firm, Johnson Ivancevich LLP, to pay $31,408 to the opposing parties in a dispute over a collective bargaining agreement.That amount covers the …