Add copyright notices.

clients/tools/ldapdelete.c

 /* ldapdelete.c - simple program to delete an entry using LDAP */
+/*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 
 #include "portable.h"
 

clients/tools/ldapmodrdn.c

+/*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 /* ldapmodrdn.c - generic program to modify an entry's RDN using LDAP.
  *
  * Support for MODIFYDN REQUEST V3 (newSuperior) by:

clients/tools/ldappasswd.c

+/*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 /*
  *	Copyright 1998, David E. Storey, All rights reserved.
  *	This software is not subject to any license of The Murphy Group, Inc.

clients/tools/ldapsearch.c

+/*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 #include "portable.h"
 
 #include <stdio.h>