mirror remote FTP permissions by default. There should be a new
option add an option that enables this back on.
-* Implement a `--disable-dns-cache' option that disables DNS caching.
- It is trivial to implement; simply avoid calling cache_host_lookup
- at the end of lookup_host.
-
* Honor `Content-Disposition: XXX; filename="FILE"' when creating the
file name.