cache entry_list: fix crash on insertion via lua
When inserting NS or xNAME, we could get into this place with qry == NULL, and we'd crash when trying to use the memory pool. Let's simply use the stack instead.
When inserting NS or xNAME, we could get into this place with qry == NULL, and we'd crash when trying to use the memory pool. Let's simply use the stack instead.