caddy-frontend: Sort list of authorised slaves

This will stabilise list of published slaves.

software/caddy-frontend/buildout.hash.cfg

@@ -26,7 +26,7 @@ md5sum = 2903758a104186b7dae9573c3470be78
 
 [template-caddy-replicate]
 filename = instance-apache-replicate.cfg.in
-md5sum = af2c92ff8abf56ea31289f6d7013bf62
+md5sum = fbd7b74de5bc445157c6c3533fc5b073
 
 [template-slave-list]
 filename = templates/apache-custom-slave-list.cfg.in

software/caddy-frontend/instance-apache-replicate.cfg.in

@@ -199,6 +199,7 @@ context =
 {%     do warning_slave_dict.__setitem__(slave.get('slave_reference'), slave_warning_list) %}
 {%   endif %}
 {% endfor %}
+{% do authorized_slave_list.sort() %}
 
 [monitor-instance-parameter]
 monitor-httpd-port = {{ slapparameter_dict.get('monitor-httpd-port', '8196') }}