google DNS resolvers have limits on the size of the queries. cloudflare.com TXT sometimes is over that limit. Switch to cloudflare servers for now and make it configurable for tests.
coverage: 68.545% (-0.009%) from 68.554%
when pulling 35a848c0603f2a0b9c87c3998abdadfae3f9ff53 on nodech:change-ownership-resolvers
into fe336aec11cf928265f9f16a7cf4ecda727f5bfb on handshake-org:master.
google DNS resolvers have limits on the size of the queries. cloudflare.com TXT sometimes is over that limit. Switch to cloudflare servers for now and make it configurable for tests.