improvements to bleed.go
improvements to bleed.go

saisai/Heartbleed,saisai/Heartbleed,saisai/Heartbleed,mozilla-services/Heartbleed,FiloSottile/Heartbleed,FiloSottile/Heartbleed,behzad88/Heartbleed,behzad88/Heartbleed,FiloSottile/Heartbleed,behzad88/Heartbleed,mozilla-services/Heartbleed