message: package: don't check test coverage
diff: "docs": "node build/docs -- --go",
  "precommit": "npm run lint -- --fail-on-error",
  "prepush": "npm run preversion",
  - "preversion": "npm test && nyc check-coverage",
  + "preversion": "npm test",
  "postversion": "",
  "release": "sh build/release.sh",
  "pre-release": "sh build/release.sh prerelease",
  