code: function handleError(err, store) {
    if (err && !err.plugin) {
      err.plugin = 'gulp-task-maker'
    }
    if (Array.isArray(store)) {
      store.push(err)
    } else {
      showError(err)
    }
  }
docs: Store an error for later, log it instantly or throw if in strict mode
  @param {object} err - error object
  @param {Array} [store] - where to store the error for later