slugrunner: fix writing of config_vars
slugrunner: fix writing of config_vars

Signed-off-by: Lewis Marshall <748e1641a368164906d4a0c0e3965345453dcc93@lmars.net>

benbjohnson/flynn,clifff/flynn,TribeMedia/flynn,supermario/flynn,ozum/flynn,felixrieseberg/flynn,mubassirhayat/flynn,jzila/flynn,josephglanville/flynn,kgrz/flynn,arekkas/flynn,jzila/flynn,Brandywine2161/flynn,flynn/flynn,kgrz/flynn,felixrieseberg/flynn,arekkas/flynn,Brandywine2161/flynn,jzila/flynn,arekkas/flynn,tonicbupt/flynn,tonicbupt/flynn,TribeMedia/flynn,clifff/flynn,Brandywine2161/flynn,shutej/flynn,flynn/flynn,pkdevbox/flynn,justintung/flynn,felixrieseberg/flynn,clifff/flynn,whouses/flynn,GrimDerp/flynn,flynn/flynn,GrimDerp/flynn,benbjohnson/flynn,supermario/flynn,pkdevbox/flynn,philiplb/flynn,flynn/flynn,TribeMedia/flynn,technosophos/flynn,kgrz/flynn,supermario/flynn,shads196770/flynn,lmars/flynn,tonicbupt/flynn,justintung/flynn,pkdevbox/flynn,josephglanville/flynn,rikur/flynn,benbjohnson/flynn,supermario/flynn,shads196770/flynn,tonicbupt/flynn,shads196770/flynn,schatt/flynn,Brandywine2161/flynn,lmars/flynn,ozum/flynn,shads196770/flynn,justintung/flynn,mubassirhayat/flynn,benbjohnson/flynn,clifff/flynn,schatt/flynn,whouses/flynn,benbjohnson/flynn,Brandywine2161/flynn,flynn/flynn,mubassirhayat/flynn,pkdevbox/flynn,jzila/flynn,technosophos/flynn,josephglanville/flynn,pkdevbox/flynn,arekkas/flynn,justintung/flynn,shads196770/flynn,clifff/flynn,TribeMedia/flynn,TribeMedia/flynn,technosophos/flynn,josephglanville/flynn,lmars/flynn,tonicbupt/flynn,lmars/flynn,rikur/flynn,schatt/flynn,kgrz/flynn,lmars/flynn,schatt/flynn,schatt/flynn,whouses/flynn,ozum/flynn,ozum/flynn,felixrieseberg/flynn,technosophos/flynn,josephglanville/flynn,GrimDerp/flynn,felixrieseberg/flynn,GrimDerp/flynn,kgrz/flynn,philiplb/flynn,arekkas/flynn,TribeMedia/flynn,rikur/flynn,ozum/flynn,justintung/flynn,Brandywine2161/flynn,philiplb/flynn,ozum/flynn,kgrz/flynn,pkdevbox/flynn,whouses/flynn,jzila/flynn,justintung/flynn,schatt/flynn,jzila/flynn,supermario/flynn,rikur/flynn,whouses/flynn,shads196770/flynn,rikur/flynn,mubassirhayat/flynn,josephglanville/flynn,supermario/flynn,benbjohnson/flynn,clifff/flynn,GrimDerp/flynn,technosophos/flynn,rikur/flynn,whouses/flynn,GrimDerp/flynn,philiplb/flynn,philiplb/flynn