message: Fixes 'spo file checkout' validation messages. Closes
diff: @@ -88,11 +88,11 @@ class SpoFileCheckoutCommand extends SpoCommand {
  }
  if (args.options.id && args.options.fileUrl) {
  - return 'Specify either URL or UniqueId but not both';
  + return 'Specify either id or fileUrl but not both';
  }
  if (!args.options.id && !args.options.fileUrl) {
  - return 'Specify URL or UniqueId, one is required';
  + return 'Specify id or fileUrl, one is required';
  }
  return true;
  