code: function computeReleases(result) {
    if (!result.stdout) return null
  
    // Trim last breakline.
    const dirs = result.stdout.replace(/\n$/, '')
  
    // Convert releases to an array.
    return dirs.split('\n')
  }
docs: Compute the current release dir name.
  
  @param {object} result
  @returns {string}