message: Remove extra quotation mark
diff: @@ -14,7 +14,7 @@ pub fn pack(path: Option<PathBuf>, log: &Logger) -> result::Result<(), Error> {
  info!(&log, "Packing up the npm package...");
  let pkg_directory = find_pkg_directory(&crate_path).ok_or(Error::PkgNotFound {
  message: format!(
  - "Unable to find the pkg directory at path {:?}', or in a child directory of {:?}",
  + "Unable to find the pkg directory at path {:?}, or in a child directory of {:?}",
  &crate_path, &crate_path
  ),
  })?;
  