Fix uncaught TypeError with CASE Statement

Related to #272

Signed-off-by: Maurício Meneghini Fauth <[email protected]>

Author: MauricioFauth

src/Utils/Formatter.php

@@ -488,7 +488,7 @@ public function formatList($list)
                 // Finishing the line.
                 if ($lineEnded) {
                     $ret .= $this->options['line_ending']
-                        . str_repeat($this->options['indentation'], $indent);
+                        . str_repeat($this->options['indentation'], (int) $indent);
 
                     $lineEnded = false;
                 } else {