With respect to the "smart" behavior Matthew suggests (loading multiple databases within one execution of slapadd), it looks definitely intriguing, but since it quite departs from the current behavior, I'd protect it behind an explicit switch (e.g. -b "", or - n "detect").
Purely from a UI perspective, -b "" sounds like loading LDIF into the rootDSE; a bit confusing perhaps. Additionally, empty arguments tend to cause great confusion between users and their shell. -n detect sounds okay.
--Quanah
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Quanah Gibson-Mount Principal Software Engineer Zimbra, Inc -------------------- Zimbra :: the leader in open source messaging and collaboration