Fix permission spelling.

manifests/server.pp

@@ -20,7 +20,7 @@ class mpd::server (
   Enum['default','secure','verbose'] $log_level = default,
   Boolean $zeroconf_enabled = yes,
   Optional[String] $zeroconf_name,
-  Optional[Array[Struct[{ name => String, permissions => Array[Permision]}]]] $password,
+  Optional[Array[Struct[{ name => String, permissions => Array[Permission]}]]] $password,
   Optional[Array[Permission]] $default_permissions,
   Optional[String] $audio_output_format,
   Optional[Variant[Integer,String]] $samplerate_converter,