fix lsb codename variable in ubuntu recipe
fix lsb codename variable in ubuntu recipe

beni55/cookbooks,DataDog/opscode-cookbooks,DataDog/opscode-cookbooks,criticaljuncture/cookbooks,danielsdeleo/cookbooks,pcreux/cookbooks,akitaonrails/cookbooks,dbroeglin/cookbooks,NewSpring/Cookbooks,akitaonrails/cookbooks,pgroudas/cookbooks,gravitystorm/cookbooks,beni55/cookbooks,beni55/cookbooks,rightscale/cookbooks,dagolden/opscode-cookbooks,pcreux/cookbooks,criticaljuncture/cookbooks,criticaljuncture/cookbooks,NewSpring/Cookbooks,gravitystorm/cookbooks,DataDog/opscode-cookbooks,NewSpring/Cookbooks,sgerrand/cookbooks,pgroudas/cookbooks,pgroudas/cookbooks,pcreux/cookbooks,dagolden/opscode-cookbooks,akitaonrails/cookbooks,dbroeglin/cookbooks,rightscale/cookbooks,sgerrand/cookbooks,dbroeglin/cookbooks,danielsdeleo/cookbooks,beni55/cookbooks,NewSpring/Cookbooks,gravitystorm/cookbooks,dagolden/opscode-cookbooks,beni55/cookbooks,NewSpring/Cookbooks,beni55/cookbooks,sgerrand/cookbooks,sgerrand/cookbooks,danielsdeleo/cookbooks,akitaonrails/cookbooks,akitaonrails/cookbooks