Docs: Update documentation for `retrieve_password()` per the documentation standards.

Follow-up to [50129], [50140].

See #34281.
Built from https://develop.svn.wordpress.org/trunk@50141


git-svn-id: http://core.svn.wordpress.org/trunk@49820 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/user.php

@@ -2664,8 +2664,8 @@ function check_password_reset_key( $key, $login ) {
  * @global wpdb         $wpdb       WordPress database abstraction object.
  * @global PasswordHash $wp_hasher  Portable PHP password hashing framework.
  *
- * @param  string       $user_login Optional user_login, default null. Uses
- *                                  `$_POST['user_login']` if `$user_login` not set.
+ * @param string $user_login Optional. Username to send a password retrieval email for.
+ *                           Defaults to `$_POST['user_login']` if not set.
  * @return true|WP_Error True when finished, WP_Error object on error.
  */
 function retrieve_password( $user_login = null ) {

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.7-alpha-50140';
+$wp_version = '5.7-alpha-50141';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.