Re: ifconfig: add -rdomain option

[Klemens Nanni]

On Mon, Feb 19, 2018 at 05:09:58PM -0800, Ayaka Koshibe wrote:
> This diff would allow saying 'ifconfig foo -rdomain' instead of 'ifconfig foo 
> rdomain 0'.
I can see where you're coming from but this breaks semantics: `-option'
clears an optional parameter or deconfigures functionality whereas
`rdomain' is mandatory (defaulting to 0), every interface is attached
to exactly one routing domain all the time.