changed += 1

    print("## +++ ", args.new)
    print("## --- ", args.orig)
    print("## Added:", len(added))
    print("## Removed:", len(removed))
    print("## Updated:", changed)
    print("## Unchanged:", len(common) - changed)

    for k in sorted(added):
        print("+", k)

    for k in sorted(removed):
        print("-", k)

    print("##", "*" * 25)