#9 tempfile not removed when msg quarantined

[Stuart D. Gathman]

When a message is successfully quarantined, the
tempfile (save/tmp*.defang) is not removed. This
clutters the save directory.

[Stuart D. Gathman]

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Hmm. The remove is supposed to happen in close(). I wonder
if close() is not getting called when DISCARD is returned?
This would be a libmilter quirk.