Update PreserveText.php - CS Fix

Author: rasamassen

src/PhpWord/Writer/RTF/Element/PreserveText.php

@@ -44,7 +44,7 @@ public function write()
         $content .= $this->writeOpening();
         $content .= '{';
         $content .= $this->writeFontStyle();
-        if(is_array($element->getText())) {
+        if (is_array($element->getText())) {
             foreach ($element->getText() as $text) {
                 if (preg_match('/[{}]/', $text) == 1) {
                     $text = str_replace(['{', '}'], '', $text);