Added missing ";" for proxies

Author: seocam

manifests/proxy.pp

@@ -40,7 +40,7 @@
     location_alias => "/usr/share/nginx/$user/media/private/",
     location_custom_cfg_append => {
       add_header => "cache-control no-cache;",
-      internal   => "",
+      internal   => ";",
     },
   }