[PATCH 3 of 6 py3] config: pass some optional args as keywords

[Yuya Nishihara]

On Fri, 03 Mar 2017 14:30:06 -0500, Augie Fackler wrote:
> # HG changeset patch
> # User Augie Fackler <raf at durin42.com>
> # Date 1488563749 18000
> #      Fri Mar 03 12:55:49 2017 -0500
> # Node ID 2ab40e1c47207da01974913a46796967e19242bd
> # Parent  0034a661fbdc1e29e51fe8e2877467204282f669
> config: pass some optional args as keywords

Nice. Queued this, thanks.