8.0-BETA3/IPv6: route: bad keyword: cloning

[Li, Qing]

> 
> Upon booting an 8.0-BETA3 system with IPv6 enabled, I saw this in the
> console boot output:
> 
> route: bad keyword: cloning
> usage: route [-dnqtv] command [[modifiers] args]
> 
> This looks like it's from line 1062/1063 of /etc/network.subr
> v1.195.2.4.
> 
> This system is not an IPv6 router, so do I particularly need
> $ipv6_default_interface set in rc.conf?
> 
> Is there a situation where -cloning (still referenced in the man page)
> is a valid option to route (in inet6 context at least)?  If no, should
> I file a PR?  (I searched GNATS but didn't find anything matching
> this.)
> 

	Route cloning is obsolete. Please report issues concerning
	8.0 to freebsd-current at freebsd.org.

	Thanks,

	-- Qing