vmodtool should actually raise an error for unknown keywords
vmodtool should actually raise an error for unknown keywords

... like 'Unknown keyword: $Init' for 4.0 vcc files.

chrismoulton/Varnish-Cache,feld/Varnish-Cache,franciscovg/Varnish-Cache,varnish/Varnish-Cache,varnish/Varnish-Cache,varnish/Varnish-Cache,zhoualbeart/Varnish-Cache,zhoualbeart/Varnish-Cache,zhoualbeart/Varnish-Cache,franciscovg/Varnish-Cache,ajasty-cavium/Varnish-Cache,ajasty-cavium/Varnish-Cache,gquintard/Varnish-Cache,zhoualbeart/Varnish-Cache,ajasty-cavium/Varnish-Cache,varnish/Varnish-Cache,feld/Varnish-Cache,chrismoulton/Varnish-Cache,chrismoulton/Varnish-Cache,franciscovg/Varnish-Cache,gquintard/Varnish-Cache,ajasty-cavium/Varnish-Cache,zhoualbeart/Varnish-Cache,franciscovg/Varnish-Cache,franciscovg/Varnish-Cache,chrismoulton/Varnish-Cache,gquintard/Varnish-Cache,chrismoulton/Varnish-Cache,feld/Varnish-Cache,varnish/Varnish-Cache,gquintard/Varnish-Cache,feld/Varnish-Cache,ajasty-cavium/Varnish-Cache,feld/Varnish-Cache