hyc@OpenLDAP.org writes:

I suggest that we use option==1 for on, and option>1 for off, to minimize the impact of the change. (E.g., to explicitly turn off referrals, use ldapsearch -CC.)

That conflicts with today's -ZZ, which seems a bad option to create confusion about. Also with ldapsearch -L[L[L]].

Another variant is -C = on and +C = off. Backwards, but it's not our fault that Unix chose "-" for "on":-) Unless +foo means something special on Windows command lines?