!img disambiguation for reddichat bot

            matcher = new RegExp "^#{args}"
            potentials = []
            for k, v of map
                potentials.push k if k.match matcher

            if potentials.length is 1
                redibot.sendMessage channel, map[potentials[0]]
            else
                redibot.sendMessage channel, "You could have meant: #{potentials.join ', '}"