/usr/share/samba/setup/provision_partitions.ldif is in samba4 4.0.0~alpha18.dfsg1-4ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | dn: @PARTITION
replicateEntries: @ATTRIBUTES
replicateEntries: @INDEXLIST
replicateEntries: @OPTIONS
${LDAP_BACKEND_LINE}
|