(ITS#4447) back-{ldap,meta} don't honor "chase-referrals no"

[ando@sys-net.it]

Full_Name: Pierangelo Masarati
Version: HEAD,re23,?
OS: irrelevant
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (81.72.89.40)
Submitted by: ando


It appears that the chase-referrals [{yes|no}] option does not work as intended
in both back-ldap and back-meta, because it sets referral chasing to ON if set
to "yes" and does nothing if set to "no"; unfortunately, ON appears to be the
library's default or something like that.

A fix is coming.  p.