preseed_fetch for network-console/authorized_keys_url?

[Jack Bates <q34yzh@nottheoilrig.com>]

What do you think about replacing wget with preseed_fetch, for 
downloading the authorized_keys_url in network-console?

> diff --git a/debian/network-console.postinst b/debian/network-console.postinst
> index 02496a9..203d60d 100755
> --- a/debian/network-console.postinst
> +++ b/debian/network-console.postinst
> @@ -28,7 +28,7 @@ if [ -n "$AUTHORIZED_KEYS_URL" ]; then
>  		[ -d "$AUTHORIZED_KEYS_DIRECTORY" ] || \
>  		    mkdir "$AUTHORIZED_KEYS_DIRECTORY"
>  		chmod 0700 "$AUTHORIZED_KEYS_DIRECTORY"
> -		if ! wget -q "$AUTHORIZED_KEYS_URL" -O "$AUTHORIZED_KEYS_FILE"; then
> +		if ! preseed_fetch "$AUTHORIZED_KEYS_URL" "$AUTHORIZED_KEYS_FILE"; then
>  			db_subst $TEMPLATE_ROOT/authorized_keys_fetch_failure \
>  			    LOCATION "$AUTHORIZED_KEYS_URL"
>  			db_input critical $TEMPLATE_ROOT/authorized_keys_fetch_failure \

This would mean that the setting (network-console/authorized_keys_url) 
could be a relative URL, so you could relocate your preseed file without 
updating it.