Rename order parameter and use it as-is in the fragment order.

manifests/realm.pp

@@ -5,7 +5,7 @@ define freeradius::realm (
   $acct_pool = undef,
   $pool = undef,
   $nostrip = false,
-  $realm_order = 0,
+  $order = 30,
 ) {
   $fr_basepath = $::freeradius::params::fr_basepath
 
@@ -18,6 +18,6 @@ define freeradius::realm (
   concat::fragment { "realm-${name}":
     target  => "${fr_basepath}/proxy.conf",
     content => template('freeradius/realm.erb'),
-    order   => 30 + $realm_order,
+    order   => $order,
   }
 }