Issue #2137729 by aspilicious: Documentation for hook_local_tasks_alter() is incorrect.

core/modules/system/system.api.php

@@ -669,7 +669,7 @@ function hook_menu_local_actions_alter(&$local_actions) {
  * @see \Drupal\Core\Menu\LocalTaskInterface
  * @see \Drupal\Core\Menu\LocalTaskManager
  */
-function hook_local_task_alter(&$local_tasks) {
+function hook_local_tasks_alter(&$local_tasks) {
   // Remove a specified local task plugin.
   unset($local_tasks['example_plugin_id']);
 }