Test which version of Node.js is running under AWS Lambda and report if child_process.spawnSync is defined

lambda_node_spawn_test.js

const child_process = require('child_process');

exports.handler = function(event, context) {
    var results = {
      version: process.version,
      spawn: typeof child_process.spawn,
      spawnSync: typeof child_process.spawnSync
    };
    context.succeed(results);
};