LDAP Module call to undefined function l().

On configuration we cet an fatal error:

PHP Fatal error: Call to undefined function l() in /var/www/html/modules/ldap/ldap_authentication/LdapAuthenticationConfAdmin.class.php on line 573

On line 573 the module use the l() – function -> ‘!edit’ => l($enabled_servers[$sid]->name, LDAP_SERVERS_INDEX_BASE_PATH . ‘/edit/’ . $sid),

Anyone here who have the same bug and have wrote a patch for this?

Drupal version: 

Source: https://www.drupal.org/taxonomy/term/4/feed