Incorrect API documentation in hook_ranking

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Problem/Motivation

function hook_ranking() {
  // If voting is disabled, we can avoid returning the array, no hard feelings.
  if (\Drupal::config('vote.settings')->get('node_enabled')) {
    return array(
      'vote_average' => array(
        'title' => t('Average vote'),
        // Note that we use i.sid, the search index's search item id, rather than
        // n.nid.
        'join' => 'LEFT JOIN {vote_node_data} vote_node_data ON vote_node_data.nid = i.sid',
        // The highest possible score should be 1, and the lowest possible score,
        // always 0, should be 0.
        'score' => 'vote_node_data.average / CAST(%f AS DECIMAL)',
        // Pass in the highest possible voting score as a decimal argument.
        'arguments' => array(\Drupal::config('vote.settings').get('score_max')),
      ),
    );
  }
}

\Drupal::config('vote.settings').get('score_max') is wrong. Should be \Drupal::config('vote.settings')->get('score_max')

Proposed resolution

Fix code

Remaining tasks

• Write patch (novice)
• Review patch to check it fixes the issue, the change is properly documented and for coding standards. Provide test evidence (novice)
• Keep issue summary up to date (novice)

User interface changes

None

API changes

None