Disallow empty block statements (no-empty)

Fixes: standard/standard#796

Author: feross

eslintrc.json

@@ -93,6 +93,7 @@
     "no-dupe-keys": "error",
     "no-duplicate-case": "error",
     "no-useless-backreference": "error",
+    "no-empty": ["error", { "allowEmptyCatch": true }],
     "no-empty-character-class": "error",
     "no-empty-pattern": "error",
     "no-eval": "error",