This quest is no longer available within the game.
Greetings once again, <name>! Our need for runecloth is constant, and we can always use additional resources if you are willing to part with them. For an additional stack of twenty runecloth, I will make sure that you are recognized for your continuing efforts on behalf of the Gnomeregan Exiles.
Whenever you are ready to hand in the stack of runecloth, I'll accept it.