Fix documentation for these public functions
Fix documentation for these public functions

modulexcite/dns,skynet/dns,ym/go-dns,miekg/dns,michaelharo/dns,Psiphon-Inc/dns,tempbottle/dns,flebarbe/dns,jmhodges/dns,janstk/dns,AlexCheong/dns,bragr/dns,josephyzhou/dns,curtiszimmerman/dns,benbearchen/dns,skyportsystems/dns,asergeyev/dns,ezoic/dns,letsencrypt/dns,jdef/dns,Git-Host/dns,FiloSottile/dns,tsenart/dns,cloudflare/dns,rolandshoemaker/dns,bboreham/dns,ErikDubbelboer/dns,hugozhu/dns