Constant VHOST is deprecated

wpmuldap uses deprecated constant VHOST. Use SUBDIR_INSTALL instead. Fix could be

diff --git a/wp-content/plugins/wpmuldap/lib/wpmu_ldap.functions.php b/wp-content/plugins/wpmuldap/lib/wpmu_ldap.functions.php
index bb0cf133e..639518689 100644
--- a/wp-content/plugins/wpmuldap/lib/wpmu_ldap.functions.php
+++ b/wp-content/plugins/wpmuldap/lib/wpmu_ldap.functions.php
@@ -62,7 +62,7 @@ function wpmuLdapCreateWPUserFromLdap($opts) {
        do_action('wpmu_activate_user', $user_id, $newUserPassword, false);
 
        $domain = strtolower( wp_specialchars( $newUserName ) );
-       if( constant( "VHOST" ) == 'yes' ) {
+       if( constant( "SUBDOMAIN_INSTALL" ) === True  ) {^M
                $newdomain = $domain . "." . $current_site->domain;
                $path = $base;
        }