Quest called "Centaur Bracers" in Barrens, given at location 37,55
quest id: 855
partial quest data is wrong as of Cataclysm. It is telling me an additional location of just 10 steps north of the quest-giver. That is old quest data that needs to be removed.
It does have the new data as well near lushwater oasis and is additionally included in the quest description but is extremely confusing when it points you to the "closest" location that it has which is wrong, where the old "battle" used to take place.