test: Fix path to require hello-world module

test/addons/hello-world/test.js

@@ -1,4 +1,4 @@
 var assert = require('assert');
-var binding = require('./out/Release/binding');
+var binding = require('./build/Release/binding');
 assert.equal('world', binding.hello());
 console.log('binding.hello() =', binding.hello());