Crazy little hack by @vladikoff. Closes gh-2.

* Seems to work
* WTF

Author: cowboy

lib/exit.js

@@ -32,4 +32,10 @@ module.exports = function exit(exitCode, streams) {
   });
   // If all streams were already drained, exit now.
   tryToExit();
+  // In Windows, when run as a Node.js child process, a script utilizing
+  // this library might just exit with a 0 exit code, regardless. This code,
+  // despite the fact that it looks a bit crazy, appears to fix that.
+  process.on('exit', function() {
+    process.exit(exitCode);
+  });
 };