(ITS#5138) back-ldap still mis-handles search controls

[hyc@OpenLDAP.org]

Full_Name: Howard Chu
Version: RE23/RE24/HEAD
OS: 
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (76.168.84.21)
Submitted by: hyc


ldap_build_entry() builds the entry's attributes by using ber_scanf until it
gets to the end of the LDAP message. Unfortunately, it will read past the
sequence of attributes and parse any attached controls as if they were also
attributes.

Fix coming up...