Include JDNI adapter in Rehost utility using WIndchill 11.2.1.2 on Linux

Has anyone been able to successfully include a custom JDNI adpater in rehost? There's a comment in the rehost.properties file:

############################## Adapter Changes############################

#   "administrative" is the default suffix for the AdministrativeLdap adapter

#   "enterprise" is the default suffix for the EnterpriseLdap adapter

#   Additional domains for other adapters can be added by specifying the adapter

#      name as a suffix. Connection information for those adapters is specified by

#      adding a set of LDAP connection properties with the same suffix.

Then it uses the default "administrative" and "enterprise" in the properties:

target.ldap.renameAdapter.enterprise=com.<company>.EnterpriseLdap

target.ldap.renameAdapter.administrative=com.<company>.Ldap

So that leaves me to believe that that if I had a suffix for the JDNI adapter I could specify:

target.ldap.renameAdapter.<JDNI adpater suffix>=com.<company>.<JDNI adapter name>

But how do I create a JDNI adapter suffix?

This is preventing me from upgrading to 12.2