Create /srv/mailman

The multihost setup mailman setup assumes /srv/mailman is present which
then causes failures in testing because we don't explicitly create this
path. Fix that by managing the /srv/mailman path in puppet too.

Change-Id: Ia378b098b672e471897c8397f2562fc21a327f38

manifests/init.pp

@@ -5,13 +5,19 @@ class mailman(
   $multihost = false,
 ) {
 
-  include ::httpd
+  include httpd
 
   package { 'mailman':
     ensure => installed,
   }
 
   if ($multihost) {
+    file { '/srv/mailman':
+      ensure => directory,
+      owner  => 'root',
+      group  => 'root',
+      mode   => '0755',
+    }
     file { '/etc/mailman/mm_cfg.py':
       ensure  => present,
       owner   => 'root',

manifests/site.pp

@@ -35,7 +35,7 @@ define mailman::site (
   $default_url_host,
   $install_languages = ['en'])
 {
-  include ::httpd
+  include httpd
 
   $root = "/srv/mailman/${name}"
   $dirs = [