fix loop redirecting

server is redirecting the request for this address in a way that will never complete

conf/nginx-primaryonly.conf

@@ -2,7 +2,7 @@
 	# Proxy /admin to our Python based control panel daemon. It is
 	# listening on IPv4 only so use an IP address and not 'localhost'.
 	rewrite ^/admin$ /admin/;
-	rewrite ^/admin/munin$ /admin/munin redirect;
+	rewrite ^/admin/munin$ /admin/munin/ redirect;
 	location /admin/ {
 		proxy_pass http://127.0.0.1:10222/;
 		proxy_set_header X-Forwarded-For $remote_addr;