Enforce strict adherence to Node.js callback pattern

Fixes: standard/standard#623

There must be `undefined`, `null` or an error object in the first
position of a callback.

eslintrc.json

@@ -181,8 +181,9 @@
 
     "promise/param-names": "error",
 
-    "standard/object-curly-even-spacing": ["error", "either"],
     "standard/array-bracket-even-spacing": ["error", "either"],
-    "standard/computed-property-even-spacing": ["error", "even"]
+    "standard/computed-property-even-spacing": ["error", "even"],
+    "standard/no-callback-literal": "error",
+    "standard/object-curly-even-spacing": ["error", "either"]
   }
 }