dns: remove nested-comment, add comment about resolve-host
dns: remove nested-comment, add comment about resolve-host

bjourne/factor,AlexIljin/factor,bpollack/factor,AlexIljin/factor,factor/factor,AlexIljin/factor,factor/factor,tgunr/factor,bjourne/factor,slavapestov/factor,tgunr/factor,bpollack/factor,mrjbq7/factor,slavapestov/factor,AlexIljin/factor,factor/factor,bpollack/factor,slavapestov/factor,bjourne/factor,factor/factor,nicolas-p/factor,nicolas-p/factor,tgunr/factor,factor/factor,slavapestov/factor,mrjbq7/factor,bjourne/factor,bjourne/factor,bjourne/factor,AlexIljin/factor,bpollack/factor,slavapestov/factor,mrjbq7/factor,mrjbq7/factor,AlexIljin/factor,nicolas-p/factor,tgunr/factor,mrjbq7/factor,factor/factor,bpollack/factor,slavapestov/factor,bjourne/factor,bpollack/factor,tgunr/factor,slavapestov/factor,nicolas-p/factor,AlexIljin/factor,nicolas-p/factor,nicolas-p/factor,bpollack/factor,mrjbq7/factor,nicolas-p/factor,tgunr/factor