rss: only hide comments link when no url
rss: only hide comments link when no url

stories with a url but also a description were previously not
getting comments link shown

nicholaspsmith/lobster,Denniskevin/lobsters,owen/lobsters,Denniskevin/lobsters,miguelcarvajal/lobsters,ABorgna/lobsters,GetStream/lobsters,chaica/lobsters,sboklund/munu.co,udaysinghcode/projecthunt,fremn/lobstas,derekprior/lobsters,calblueprint/bp-news,calblueprint/bp-news,owen/lobsters,buitranquyet/lobsters,chaica/lobsters,sboklund/munu.co,mojacc/lobsters,hlian/barnacles,udaysinghcode/projecthunt,GetStream/lobsters,nh-platform/barnacles,cannikin/lobsters,nh-platform/barnacles,buitranquyet/lobsters,aaron-lebo/updn,Bloc/lobsters,fremn/lobstas,owen/lobsters,hlian/barnacles,cannikin/lobsters,mojacc/lobsters,buitranquyet/lobsters,STRd6/barnacles,sboklund/munu,harsha-mudi/lobsters,mojacc/lobsters,derekprior/lobsters,SIGN-UP/totalitarian.info,SIGN-UP/totalitarian.info,hlian/barnacles,ukazap/lobsters,SIGN-UP/totalitarian.info,andyyang/lobsters,Denniskevin/lobsters,ukazap/lobsters,miguelcarvajal/lobsters,chaica/lobsters,Denniskevin/lobsters,ABorgna/lobsters,sboklund/munu.co,saitodisse/lobsters,calblueprint/bp-news,andyyang/lobsters,aaron-lebo/updn,hlian/barnacles,STRd6/barnacles,sboklund/munu,saitodisse/lobsters,fremn/lobstas,buitranquyet/lobsters,andyyang/lobsters,nicholaspsmith/lobster,nh-platform/barnacles,ukazap/lobsters,sboklund/munu.co,mojacc/lobsters,derekprior/lobsters,nh-platform/barnacles,Bloc/lobsters,miguelcarvajal/lobsters,benrmatthews/servicedesignnews,owen/lobsters,STRd6/barnacles,ABorgna/lobsters,Bloc/lobsters,Bloc/lobsters,ABorgna/lobsters,saitodisse/lobsters,benrmatthews/servicedesignnews,udaysinghcode/projecthunt,cannikin/lobsters,derekprior/lobsters,aaron-lebo/updn,cannikin/lobsters,nicholaspsmith/lobster,ukazap/lobsters,harsha-mudi/lobsters,benrmatthews/servicedesignnews,GetStream/lobsters,aaron-lebo/updn,sboklund/munu,chaica/lobsters,harsha-mudi/lobsters,harsha-mudi/lobsters,sboklund/munu,saitodisse/lobsters,STRd6/barnacles,SIGN-UP/totalitarian.info,GetStream/lobsters