message: Clarify file count for listFile
diff: @@ -777,7 +777,7 @@ async function listFilesLoop(
  * List the set of files in this application's Gaia storage bucket.
  * @param {function} callback - a callback to invoke on each named file that
  * returns `true` to continue the listing operation or `false` to end it
  - * @return {Promise} that resolves to the number of files listed, or rejects with an error.
  + * @return {Promise} that resolves to the number of files listed (excluding the last if ended early), or rejects with an error.
  */
  export function listFiles(
  callback: (name: string) => boolean,
  