[MPlayer-dev-eng] [DOCS] [RESEND] missing option descriptions

[Diego Biurrun]

Dave Lambley writes:
 > I can help you with two:
 > 
 > -prefer-ipv4 / -prefer-ipv6 - These tell MPlayer to connect to a servers
 > using the IPv4 or IPv6 protocols first. If one protocol fails to work it
 > will try the other automatically.
 > 
 > This option applies to HTTP, MMS, ASF, NetStream and RealRTSP streaming,
 > although it has only been tested with HTTP and MMS.
 > 
 > 
 > -ipv4-only-proxy - This tells mplayer that your HTTP proxy can only
 > connect to IPv4 addresses. With this option, if the hostname cannot be
 > resolved to an IPv4 address, MPlayer will try to connect to the server
 > directly, rather than the proxy.

So what about

-prefer-ipv4
	Use IPv4 on network connections.  Falls back to IPv6
	automatically.

-prefer-ipv6
	Use IPv6 on network connections.  Falls back to IPv4
	automatically.

-ipv4-only-proxy
	Skip the proxy for IPv6 addresses.  It will still be used for
	IPv4 connections.

Diego