Issue 3471 - Introduce $adblockplus::directory variable

modules/adblockplus/manifests/log/master.pp

 # == Class: adblockplus::log::master
 #
 # A server setup to collect and pre-process (i.e. anonymize and combine)
 # log files using Logstash (https://logstash.net/) pipelines.
 #
 class adblockplus::log::master {
 
   include adblockplus
-  realize(File['/var/adblockplus'])
+  realize(File[$adblockplus::directory])
 
   # Mapping hiera values explicitly becomes obsolete with Puppet 3.x
   class {'logstash':
     contrib => hiera('logstash::contrib', false),
     ensure => hiera('logstash::ensure', 'running'),
     pipelines => hiera('logstash::pipelines', {}),
     version => hiera('logstash::version', '1.4'),
   }
 
   # Default location for output files in Logstash pipeline configurations
-  file {'/var/adblockplus/log':
+  file {"$adblockplus::directory/log":
     before => Service['logstash'],
     group => 'logstash',
     mode => 0775,
     require => [
-      File['/var/adblockplus'],
+      File[$adblockplus::directory],
       Package['logstash'],
     ],
   }
 }