phaser/node_modules/grunt/test/fixtures/spawn.js

var code = Number(process.argv[2]);

process.stdout.write('stdout\n');
process.stderr.write('stderr\n');

// Use instead of process.exit to ensure stdout/stderr are flushed
// before exiting in Windows (Tested in Node.js v0.8.7)
require('../../lib/util/exit').exit(code);