Fixed issue #2436 (Classic baton stuns borgs)

Fixed issue 2436 (https://github.com/tgstation/-tg-station/issues/2436 - Classic baton stuns borgs).

Tested locally on both regular borgs and syndieborgs.

Did NOT change flavor text when someone hits a borg with the classic baton with the "help" intent, so it will still show up as "Borg has been stunned with Classic Baton by Human!". Can easily change it by adding the current message in between the curly brackets and some new text in an else clause.