Free line memory even if zone file parsing fails

NLnetLabs / ldns

LDNS is a DNS library that facilitates DNS tool programming

https://nlnetlabs.nl/ldns

BSD 3-Clause "New" or "Revised" License

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Closed bbczeuz closed 2 years ago

bbczeuz commented 2 years ago

Fixes #178. Frees line buffer if return code is nonzero.

Question: Fix here or fix in ldns_fget_token_l_st to not leave allocated mem if returning nonzero?