an invariant (actually, an ugly hack) to fail, and all Hell would break
loose.
When deleting a big key, the offset of an empty page should be bsize, not
bsize-1; otherwise an insertion into the empty page will cause the new key to
be elongated by 1 byte.
Make the packing more dense in a couple of cases.
- fix NULL dereference exposed on big bsize values;
Obtained from: NetBSD via OpenBSD
(This is part of a larger changeset which is intended to reduce diff only,
thus some prototypes were left intact since they will be changed in the
future).
Verified with: md5(1)
Only warnings that could be fixed without changing the generated object
code and without restructuring the source code have been handled.
Reviewed by: /sbin/md5
