Resolve rubocop warnings
Resolve rubocop warnings

johnbellone/firewall-cookbook,opscode-cookbooks/firewall,johnbellone/firewall-cookbook,williamsjj/firewall,hemalvarambhia/firewall,itmustbejj/firewall,chef-cookbooks/firewall,williamsjj/firewall,hemalvarambhia/firewall,opscode-cookbooks/firewall,chef-cookbooks/firewall,itmustbejj/firewall