empty line between snippets

manifests/preferences.pp

@@ -11,6 +11,7 @@ Pin-Priority: 1
 Package: *
 Pin: release a=testing
 Pin-Priority: 2
+
 ',
   }
 

manifests/preferences_snippet.pp

@@ -9,6 +9,7 @@ define apt::preferences_snippet(
     content => "Package: ${name}
 Pin: release a=${release}
 Pin-Priority: ${priority}
+
 ",
     notify => Exec["concat_${apt::preferences::apt_preferences_dir}"],
     owner => root, group => 0, mode => 0600;