[CFR] Introduce "route del" as a synonym to "route delete"

[Kirill Ponomarew]

On Fri, Sep 23, 2005 at 03:56:49PM +0200, Anton Berezin wrote:
> Any objections?

I missed "del" for route(8) for years in FreeBSD.  Actually I'd like
to have it.

-Kirill