Enforce default parameters to be last (default-param-last)

Fixes: standard/standard#1414

Author: feross

eslintrc.json

@@ -52,6 +52,7 @@
     "constructor-super": "error",
     "curly": ["error", "multi-line"],
     "default-case-last": "error",
+    "default-param-last": ["error"],
     "dot-location": ["error", "property"],
     "dot-notation": ["error", { "allowKeywords": true }],
     "eol-last": "error",