prepublishOnly -> prepublish

Author: viankakrisna

packages/react-dev-utils/package.json

@@ -5,7 +5,7 @@
   "repository": "facebookincubator/create-react-app",
   "license": "BSD-3-Clause",
   "scripts": {
-    "prepublishOnly": "npm run build:prod",
+    "prepublish": "npm run build:prod",
     "build": "cross-env NODE_ENV=development babel src/ -d ./",
     "watch": "cross-env NODE_ENV=development babel -w src/ -d ./",
     "build:prod": "cross-env NODE_ENV=production babel src/ -d ./"