[PATCH] Fail to start ldb if modules are missing

[simo]

If a module is missing we merrily keep going. This means we can end up
corrupting the ldb because maintenance tasks the module is supposed to
do are not performed.

This patch makes ldb return an error if a requested module is not found.

Sending to the list because it changes behvaior and haven't tested it w/
samba4 yet.

Tridge,
do you think it is ok ?

Simo.

-- 
Simo Sorce
Samba Team GPL Compliance Officer <simo at samba.org>
Principal Software Engineer at Red Hat, Inc. <simo at redhat.com>