update go-ldap (#4776)

vendor/github.com/go-ldap/ldap/add.go

@@ -41,6 +41,8 @@ type AddRequest struct {
 	DN string
 	// Attributes list the attributes of the new entry
 	Attributes []Attribute
+	// Controls hold optional controls to send with the request
+	Controls []Control
 }
 
 func (a AddRequest) encode() *ber.Packet {
@@ -60,9 +62,10 @@ func (a *AddRequest) Attribute(attrType string, attrVals []string) {
 }
 
 // NewAddRequest returns an AddRequest for the given DN, with no attributes
-func NewAddRequest(dn string) *AddRequest {
+func NewAddRequest(dn string, controls []Control) *AddRequest {
 	return &AddRequest{
-		DN: dn,
+		DN:       dn,
+		Controls: controls,
 	}
 
 }
@@ -72,6 +75,9 @@ func (l *Conn) Add(addRequest *AddRequest) error {
 	packet := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "LDAP Request")
 	packet.AppendChild(ber.NewInteger(ber.ClassUniversal, ber.TypePrimitive, ber.TagInteger, l.nextMessageID(), "MessageID"))
 	packet.AppendChild(addRequest.encode())
+	if len(addRequest.Controls) > 0 {
+		packet.AppendChild(encodeControls(addRequest.Controls))
+	}
 
 	l.Debug.PrintPacket(packet)