Fix test_search_with_size case

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Author: dzaporozhets

test/integration/test_search.rb

@@ -28,7 +28,7 @@ def test_search_without_result
   def test_search_with_size
     entries = []
 
-    result = @ldap.search(filter: "(uid=user1)", base: "dc=rubyldap,dc=com", return_result: false, size: 1) do |entry|
+    result = @ldap.search(filter: "(uid=user1)", base: "dc=rubyldap,dc=com", size: 1) do |entry|
       assert_kind_of Net::LDAP::Entry, entry
       entries << entry
     end