Serrated Dirk: Tooltip errors

Just a minor issue: Serrated Dirk's tooltip states that it does 'bonus damage' on the next hit after killing an enemy, but it does not say which kind of damage it is.

Also, the in-shop description suggests that it gives CDR. Here a link to a reddit discussion where this has been brought up: https://www.reddit.com/r/leagueoflegends/comments/3suizg/serrated_dirk_thinks_hes_a_brutalizer/