Fix string interpolation.

manifests/output.pp

@@ -5,7 +5,7 @@ define mpd::output (
 ) {
   require ::mpd::server
 
-  $content_base = @(EOF)
+  $content_base = @("EOF")
     audio_output {
       type "${type}"
       name "${name}"
@@ -15,6 +15,6 @@ define mpd::output (
 
   concat::fragment { "mpd audio ${name}":
     target  => '/etc/mpd.conf',
-    content => "${content_base}${content_aux}}",
+    content => "${content_base}${content_aux}}\n",
   }
 }