Another typo. dn_normalize is supposed to be dn_normalize_case.

servers/slapd/modify.c

@@ -87,7 +87,7 @@ do_modify(
 
 	ndn = ch_strdup( dn );
 
-	if(	dn_normalize( ndn ) == NULL ) {
+	if(	dn_normalize_case( ndn ) == NULL ) {
 		Debug( LDAP_DEBUG_ANY, "do_modify: invalid dn (%s)\n", dn, 0, 0 );
 		send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 		    "invalid DN", NULL, NULL );