/etc/network.subr list_net_interfaces() fix

[Chris Csanady]

By the time list_net_interfaces() is called in /etc/rc.d/netif,  
clone_up() has
already created each of $cloned_interfaces.  At this point, they will be
shown by the 'ifconfig -l', so there is no need to explicitly append  
them.
In doing so, the cloned interfaces are configured and listed twice.

clone_up() is called from network_start(), before network_common() in
/etc/rc.d/netif.  list_net_interfaces() is only called from  
network_common()
and /etc/rc.d/dhclient, which is itself dependent  on netif.	Therefore,
appending the cloned interface list here will always result in  
duplicates.

--- /usr/src/etc/network.subr   2003-07-24 01:35:32.000000000 -0500
+++ /etc/network.subr   2005-12-22 05:50:49.000000000 -0600
@@ -270,17 +270,16 @@
        case ${network_interfaces} in
        [Aa][Uu][Tt][Oo])
                _tmplist="`ifconfig -l`"
                ;;
        *)
                _tmplist="${network_interfaces}"
                ;;
        esac
-       _tmplist="${_tmplist} ${cloned_interfaces}"
        if [ -z "$type" ]; then
                echo $_tmplist
                return 0
        fi
        # Separate out dhcp and non-dhcp intefraces
        #
Chris