fixed invalid IPv6 address

site.conf

@@ -64,7 +64,7 @@
 			},
 			testing => {
 				name => 'testing',
-				mirrors => ['http://[fdca:ffee::ff12:42::42]/testing','http://10.132.0.50/testing','http://firmware.paderborn.freifunk.net/testing'],
+				mirrors => ['http://[fdca:ffee:ff12:42::42]/testing','http://10.132.0.50/testing','http://firmware.paderborn.freifunk.net/testing'],
 				probability => 0.25,
 				good_signatures => 1,
 				pubkeys => [