Fix indentation in webpack/prod.config.js

Author: gusaiani

webpack/prod.config.js

@@ -80,8 +80,8 @@ module.exports = {
     new webpack.optimize.OccurenceOrderPlugin(),
     new webpack.optimize.UglifyJsPlugin({
       compress: {
-          warnings: false
-        }
+        warnings: false
+      }
     }),
 
     webpackIsomorphicToolsPlugin