Resilient stack: notifier-url is rather a notifier-host

So we remove the trailing /.

stack/resilient/buildout.cfg

@@ -52,7 +52,7 @@ mode = 0644
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/instance-pull-backup.cfg.in
 output = ${buildout:directory}/instance-pull-backup.cfg
-md5sum = 453d96f5a6c1230c01c878cc7640bae6
+md5sum = c67a9dad66490ae264f9e7003521bf59
 mode = 0644
 
 [template-replicated]

stack/resilient/instance-pull-backup.cfg.in

@@ -105,7 +105,8 @@ promises-directory = $${basedirectory:promises}
 directory = $${directory:pbs-backup}
 cron-entries = $${cron:cron-entries}
 wrappers-directory = $${directory:pbs-wrappers}
-notifier-url = http://[$${notifier:host}]:$${notifier:port}/
+# XXX: this should be named "notifier-host"
+notifier-url = http://[$${notifier:host}]:$${notifier:port}
 slave-instance-list = $${slap-parameter:slave_instance_list}