fix preg_match made array type [closes #786]

Signed-off-by: Tomas Votruba <tomas.vot@gmail.com>

fixturize.php

@@ -0,0 +1,21 @@
+<?php declare(strict_types=1);
+
+use Nette\Utils\FileSystem;
+use Nette\Utils\Strings;
+use Symfony\Component\Finder\Finder;
+use Symfony\Component\Finder\SplFileInfo;
+
+require __DIR__ . '/vendor/autoload.php';
+
+// 1. rename files
+$finder = (new Finder())->files()
+    ->in([__DIR__ . '/packages', __DIR__ . '/tests'])
+    ->name('#(wrong|Wrong)#');
+
+/** @var SplFileInfo $fileInfo */
+foreach ($finder as $fileInfo) {
+    $newName = Strings::replace($fileInfo->getRealPath(), '#wrong#', 'fixture');
+    FileSystem::rename($fileInfo->getRealPath(), $newName);
+    // remove old file
+    unlink($fileInfo->getRealPath());
+}