Long: socks5
Arg: <host[:port]>
Help: SOCKS5 proxy on given host + port
Added: 7.18.0
---
Use the specified SOCKS5 proxy - but resolve the host name locally. If the
port number is not specified, it is assumed at port 1080.

This option overrides any previous use of --proxy, as they are mutually
exclusive.

Since 7.21.7, this option is superfluous since you can specify a socks5 proxy
with --proxy using a socks5:// protocol prefix.

If this option is used several times, the last one will be used.

This option (as well as --socks4) does not work with IPV6, FTPS or LDAP.