Apply fixes from StyleCI (#20)

Author: Nyholm

src/LegacyTranslationLoader.php

@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of the PHP Translation package.
+ *
+ * (c) PHP Translation team <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Translation\SymfonyStorage;
 
 use Symfony\Component\Translation\MessageCatalogue;

src/Loader/Port/SymfonyPort.php

@@ -108,7 +108,7 @@ public function getVersionNumber(\DOMDocument $dom)
 
             $namespace = $xliff->attributes->getNamedItem('xmlns');
             if ($namespace) {
-                if (substr_compare('urn:oasis:names:tc:xliff:document:', $namespace->nodeValue, 0, 34) !== 0) {
+                if (0 !== substr_compare('urn:oasis:names:tc:xliff:document:', $namespace->nodeValue, 0, 34)) {
                     throw new InvalidArgumentException(sprintf('Not a valid XLIFF namespace "%s"', $namespace));
                 }
 

src/Loader/XliffLoader.php

@@ -136,7 +136,7 @@ private function loadFileContent($content)
         libxml_disable_entity_loader($disableEntities);
 
         foreach ($dom->childNodes as $child) {
-            if ($child->nodeType === XML_DOCUMENT_TYPE_NODE) {
+            if (XML_DOCUMENT_TYPE_NODE === $child->nodeType) {
                 throw new \InvalidArgumentException('Document types are not allowed.');
             }
         }