Issue 3196 - Correct misuse of $alias metaparameter

modules/filtermaster/manifests/repo_download.pp

 # == Type: filtermaster::repo_download
 #
 # Manage filter list download source repositories for aggregation.
 #
 # === Parameters:
 #
-# [*alias*]
+# [*target*]
 #   An optional alias for use as the download resource name, allows for
 #   repositories with different names. Note that this option is recognized
 #   only when setup via hiera('filtermaster::repo_downloads')!
 #
 # === Examples:
 #
 #   filtermaster::repo_download {'exceptionrules':
 #     alias => 'exceptions',
 #   }
 #
 define filtermaster::repo_download (
-  $alias = $title,
+  $target = $title,
 ) {
 
   $directory = "/home/rsync/subscription/$title"
   $repository = "https://hg.adblockplus.org/$title"
 
   ensure_packages(['mercurial'])
 
   exec {"filtermaster::repo_download#$title":
     command => shellquote('hg', 'clone', $repository, $directory),
     onlyif => shellquote('test', '!', '-d', $directory),
     path => ['/usr/local/bin', '/usr/bin', '/bin'],
     require => Package['mercurial'],
     timeout => 0,
     user => 'rsync',
   }
 }