Fixing Async Calls Missing Callbacks

I recently updated to the latest stable version of node (v7.5.0) with the following command: $ nvm install stable --reinstall-packages-from=node and when I ran my ios-triage cli app, I saw several DeprecationWarning messages: (node:3958) DeprecationWarning: Calling an asynchronous function without callback is deprecated. Initially I was pretty excited because I recently taught myself node and as a noob I knew I was missing some callbacks which was preventing my async.