Fix rfx2696 cookie, it should use the to_ber_bin method because to_ber will try to encode to UTF-8 first and break the cookie's representation of binary data

Author: amuta

Diff for: lib/net/ldap/connection.rb

@@ -429,7 +429,7 @@ def search(args = nil)
             Net::LDAP::LDAPControls::PAGED_RESULTS.to_ber,
             # Criticality MUST be false to interoperate with normal LDAPs.
             false.to_ber,
-            rfc2696_cookie.map(&:to_ber).to_ber_sequence.to_s.to_ber,
+            [rfc2696_cookie[0].to_ber, rfc2696_cookie[1].to_ber_bin].to_ber_sequence.to_ber_bin,
           ].to_ber_sequence if paged
         controls << ber_sort if ber_sort
         controls = controls.empty? ? nil : controls.to_ber_contextspecific(0)