knob for Kerberos is misleading, as it is necessary only for ADS support;
the installation scripts renamed installed binaries to *.old. Also,
delete the USE_OPENLDAP_VER?= line, it is not only not needed once you
set USE_OPENLDAP=yes, it can positively interfere with LDAP version bumps
PR: ports/64057
Submitted by: Timur I. Bakeyev <timur@gnu.org> (maintainer)
Reviewd by: eik
