Issue 3881 - Ensure sitescripts.ini being present even if empty

modules/sitescripts/manifests/init.pp

 class sitescripts (
     $sitescriptsini_source = '',
     $sitescriptsini_content = '',
   ){
 
   @concat {'/etc/sitescripts.ini':
     mode => 644,
     owner => root,
     group => root,
   }
 
   define configfragment($content = '', $source = '') {
 
     realize(Concat['/etc/sitescripts.ini'])
 
     concat::fragment {"/etc/sitescripts.ini#$title":
       target  => '/etc/sitescripts.ini',
       content => $content,
       source  => "$source$content" ? {
         ''     => $title,
         default => $source,
       }
     }
   }
 
   if ($sitescriptsini_source != '') or ($sitescriptsini_content != '') {
 
-    configfragment {'/etc/sitescripts.ini':
-      content => $sitescriptsini_content,
-      source => $sitescriptsini_source,
-    }
+    $content = $sitescriptsini_content
+    $source = $sitescriptsini_source
+  }
+  else {
+
+    $content = "# Puppet: Class['$title']\n"
+    $source = ''
+  }
+
+  configfragment {'/etc/sitescripts.ini':
+    content => $content,
+    source => $source,
   }
 
   $configfragments = hiera('sitescripts::configfragments', {})
   create_resources('sitescripts::configfragment', $configfragments)
 
   exec { "fetch_sitescripts":
     command => "hg clone https://hg.adblockplus.org/sitescripts /opt/sitescripts",
     path => ["/usr/bin/", "/bin/"],
     require => Package['mercurial'],
     onlyif => "test ! -d /opt/sitescripts"
   }
 
   cron {"update_sitescripts":
     ensure => present,
     command => "hg pull -q -u -R /opt/sitescripts && /opt/sitescripts/ensure_dependencies.py -q",
     environment => hiera('cron::environment', []),
     user => root,
     require => Exec["fetch_sitescripts"],
   }
 }