Docs: Improve the documentation for parameters which accept OBJECT, ARRAY_A, and ARRAY_N as parameters.

See #37770

Built from https://develop.svn.wordpress.org/trunk@39188


git-svn-id: http://core.svn.wordpress.org/trunk@39128 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/wp-db.php

@@ -2294,10 +2294,8 @@ class wpdb {
 	 * @since 0.71
 	 *
 	 * @param string|null $query  SQL query.
-	 * @param string      $output Optional. one of ARRAY_A | ARRAY_N | OBJECT constants.
-	 *                            Return an associative array (column => value, ...),
-	 *                            a numerically indexed array (0 => value, ...) or
-	 *                            an object ( ->column = value ), respectively.
+	 * @param string      $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which correspond to
+	 *                            an stdClass object, an associative array, or a numeric array, respectively. Default OBJECT.
 	 * @param int         $y      Optional. Row to return. Indexed from 0.
 	 * @return array|object|null|void Database query result in format specified by $output or null on failure
 	 */