message: Added correct name mapping for Mac extension
diff: @@ -12,6 +12,9 @@ function getPlatformDir() {
  if (process.platform === "win32") {
  return "win" + arch;
  }
  + else if (process.platform === "darwin") {
  + return "macos" + arch;
  + }
  return process.platform + arch;
  }
  