fixed missing semicolon.

Author: lquixada

.eslintrc

@@ -10,5 +10,8 @@
     "parserOptions": {
         "ecmaVersion": 6,
         "sourceType": "module"
+    },
+    "rules": {
+      "semi": ["error", "always"]
     }
 }

polyfill/fetch-node.js

@@ -2,7 +2,7 @@
 
 var fetchNode = require('../fetch-node');
 var fetch = fetchNode.fetch.bind({});
-fetch.polyfill = true
+fetch.polyfill = true;
 
 if (!global.fetch) {
   global.fetch = fetch;