.kitchen.dokken.yml: Set "sysvinit" provider for Debian 7
.kitchen.dokken.yml: Set "sysvinit" provider for Debian 7

Provider auto-detection gives an invalid result in Docker:
https://github.com/poise/poise-service/commit/171a6d8af9e8d7bf482302d2d27bef017dff2ce6#comments

johnbellone/consul-cookbook,johnbellone/consul-cookbook,johnbellone/consul-cookbook