makedbm(8) on OpenBSD
The text 3edb23dfab51, as OpenBSD 4.0, OpenBSD 3.9, OpenBSD 3.8, OpenBSD 3.7, OpenBSD 3.6, OpenBSD 3.5, OpenBSD 3.4 shipped it.
create a YP database
Flags it lists
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-U -
-b -
-d -
-i -
-l -
-m -
-o -
-s -
-u