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.
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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.