Re: shorten ifconfig output for vnetids and parent interfaces

[Theo de Raadt]

> > -       vnetid: 7
> > -       parent: ix1
> > +       encap: vnetid: 7 parent: ix1
> >=20
> 
> The repeated colons for keys after encap: are unusual for ifconfig output, c=
> ould you just skip them like the following:
> 
> encap: vnetid 7 parent ix1

true