(ITS#5084) back-ldap does not return if remote server is unreachable

[ando@sys-net.it]

Full_Name: Pierangelo Masarati
Version: HEAD
OS: irrelevant
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (131.175.154.35)
Submitted by: ando


This is HEAD only as of today (re23 as of today works as expected).  To
reproduce: configure slapd with an ldap database pointing nowhere.

p.