fix bug in parsing configure arguments in NGINX ohai plugin
fix bug in parsing configure arguments in NGINX ohai plugin

should split on '--' not spaces, flags could have spaces:
	--ld-path="something here"

Signed-off-by: jtimberman <d6955d9721560531274cb8f50ff595a9bd39d66f@opscode.com>

Roblox/chef_nginx,seefood/tengine-cookbook,gansbrest/nginx,Lispython/nginx-cookbook,spulec/nginx_private,sanguis/nginx,zuazo-forks/opscode-cookbooks-nginx,kri5/nginx,chef-cookbooks/chef_nginx,axos88/chef_nginx,miketheman/nginx,channelgrabber/nginx,evertrue/nginx-cookbook,ttab/nginx,auth0/chef-nginx,Roblox/chef_nginx,cookbooks/mc-nginx,whatcould/nginx,periscopedevelopment/nginx,Sauraus/chef_nginx,cokeboL/nginx,AudaxHealthInc/nginx,luishdez/nginx-cookbook,feedhenry-cookbooks/nginx,cokeboL/nginx,Sauraus/chef_nginx,blmlove409/nginx_cookbook,periscopedevelopment/nginx,Altiscale/nginx,axos88/chef_nginx,Altiscale/nginx,trotttrotttrott/cookbook-nginx_node-tail,7bfa689ac3c4be50f8ba6c1ea8c5f316/nginx,birarda/nginx,8la/nginx,cpbtechnology/nginx,cookbooks/hw-nginx,axos88/chef_nginx,Sauraus/chef_nginx,luishdez/nginx-cookbook,fsultan/nginx,fsultan/nginx,newlywish/nginx,cookbooks/nd-chef-opscode-nginx,8la/nginx,AudaxHealthInc/nginx,periscopedevelopment/nginx,ffuenf/nginx,newlywish/nginx,jharveysmith/nginx,cookbooks/oc-nginx,cpbtechnology/nginx,chef-cookbooks/chef_nginx,ttab/nginx,luishdez/nginx-cookbook,birarda/nginx,chef-cookbooks/chef_nginx,fsultan/nginx,jharveysmith/nginx,birarda/nginx,7bfa689ac3c4be50f8ba6c1ea8c5f316/nginx,cpbtechnology/nginx,blmlove409/nginx_cookbook,myplaceonline/nginx,evertrue/nginx-cookbook,miketheman/nginx,miketheman/nginx,zuazo-forks/opscode-cookbooks-nginx,8la/nginx,whatcould/nginx,gansbrest/nginx,gansbrest/nginx,channelgrabber/nginx,AudaxHealthInc/nginx,channelgrabber/nginx,ttab/nginx,ffuenf/nginx,auth0/chef-nginx,7bfa689ac3c4be50f8ba6c1ea8c5f316/nginx,Roblox/chef_nginx,feedhenry-cookbooks/nginx,blmlove409/nginx_cookbook,cokeboL/nginx,evertrue/nginx-cookbook,newlywish/nginx,ffuenf/nginx,kri5/nginx,myplaceonline/nginx,Altiscale/nginx,kri5/nginx