Update PHP-CS-Fixer to v3.x (#460)

src/User/Module.php

@@ -229,11 +229,11 @@ class Module extends BaseModule
      * @var boolean whether to disable IP logging into user table
      */
     public $disableIpLogging = false;
-    
+
     /**
      * @var array Minimum requirements when a new password is automatically generated.
-     * Array structure: `requirement => minimum number characters`.
-     * 
+     *            Array structure: `requirement => minimum number characters`.
+     *
      * Possible array keys:
      *  - lower: minimum number of lowercase characters;
      *  - upper: minimum number of uppercase characters;