missing comma

Author: eric-s-s

run_mypy.py

@@ -3,7 +3,7 @@
 modules = ["axelrod/actions.py",
            "axelrod/deterministic_cache.py",
            "axelrod/ecosystem.py",
-           "axelrod/fingerprint.py"
+           "axelrod/fingerprint.py",
            "axelrod/game.py",
            "axelrod/load_data_.py",
            "axelrod/mock_player.py",