When locking *do* unlock
When locking *do* unlock

Add unlocking to some more places as pointed out by bronze1man.

Really closes #161.

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