Added private.acquire_types to the constants references in Datamine.lua.

diff --git a/Datamine.lua b/Datamine.lua
index 7014350..d919b0a 100644
--- a/Datamine.lua
+++ b/Datamine.lua
@@ -65,6 +65,7 @@ local GetSpellInfo = GetSpellInfo
 -- Constants
 -------------------------------------------------------------------------------
 local F = private.filter_flags
+local A = private.acquire_types

 -------------------------------------------------------------------------------
 -- Tradeskill professions