control_const.py typo on line 508

[ismre]

Lines 508 and 509 of control_const.py read:

            name="Timed Discharge Current",
            key="timed_discharge_current_2",

508 should read:

            name="Timed Discharge Current 2",
            key="timed_discharge_current_2",

[ismre]

I've submitted a Pull Request with the simple change.