Merge tag 'v1.22.1'

v1.22.1

 - [Fix] support windows virtual drive paths (#284)
 - [Deps] update `is-core-module`
 - [meta] use `npmignore` to autogenerate an npmignore file
 - [meta] do not publish `appveyor.yml`
 - [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape`
 - [Test] add tests for `"main": false`
 - [Tests] fix tests on node v12.0-12.2
 - [Test] add some `sync` coverage
 - [Test] fix incorrect `require.resolve` paths logic; enable these tests
 - [Tests] avoid tests breaking on node 11.11 - 11.13