Fix mirror url

roles/netbootxyz/defaults/main.yml

@@ -260,7 +260,7 @@ releases:
     base_dir: pub/micro/pc-stuff/freedos/files/distributions/1.3/official
     enabled: true
     menu: dos
-    mirror: http://www.ibiblio.org//FD13-LiteUSB.zip
+    mirror: http://www.ibiblio.org
     name: FreeDOS
     versions:
     - code_name: FD13-FullUSB