Add Sockets (-H) list to docker -D info.

This will allow us to _know_ what the user's -H settings are, which may
be useful for debugging later.

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@fosiki.com> (github: SvenDowideit)

api/client/commands.go

@@ -452,6 +452,9 @@ func (cli *DockerCli) CmdInfo(args ...string) error {
 		if initPath := remoteInfo.Get("InitPath"); initPath != "" {
 			fmt.Fprintf(cli.out, "Init Path: %s\n", initPath)
 		}
+		if len(remoteInfo.GetList("Sockets")) != 0 {
+			fmt.Fprintf(cli.out, "Sockets: %v\n", remoteInfo.GetList("Sockets"))
+		}
 	}
 
 	if len(remoteInfo.GetList("IndexServerAddress")) != 0 {