Fix wrong argument name

Author: christian-intra2net

update-db.py

@@ -88,7 +88,7 @@ def data_stored(data):
     for index, entry in enumerate(entries):
         # Insert tasks into the queue and let them run
         pool.queueTask(store_mimedata, args=(entry, index % 2),
-                       callback=data_stored)
+                       taskCallback=data_stored)
         if global_error:
             print("Error when executing File binary")
             break