message: eslint: no-multiple-empty-lines
  Enforce no extra empty line at the end of a file.
diff: "default-case": [2],
  "dot-notation": [2],
  "eol-last": [2, "unix"],
  + "no-multiple-empty-lines": [2, {"max": 2, "maxEOF": 0}],
  "eqeqeq": [2, "allow-null"],
  "guard-for-in": 2,
  "import/no-unresolved": ["error"],
  