Fixed a flag for Sneaking Potion in the Alchemy database, F_QUEST->F_VENDOR

diff --git a/RecipeDB/ARL-Alchemy.lua b/RecipeDB/ARL-Alchemy.lua
index f0ebe15..260d64c 100644
--- a/RecipeDB/ARL-Alchemy.lua
+++ b/RecipeDB/ARL-Alchemy.lua
@@ -727,7 +727,7 @@ function addon:InitAlchemy(RecipeDB)

 	-- Sneaking Potion -- 28546
 	AddRecipe(28546,315,22826,1,1,315,330,337,345)
-	self:addTradeFlags(RecipeDB,28546, F_ALLIANCE, F_HORDE, F_QUEST, F_IBOE, F_RBOE)
+	self:addTradeFlags(RecipeDB,28546, F_ALLIANCE, F_HORDE, F_VENDOR, F_IBOE, F_RBOE)
 	self:addTradeAcquire(RecipeDB,28546,2,18017,2,19042)

 	-- Elixir of Major Frost Power -- 28549