Fix Twig function

Closes #3506101

src/TwigExtension.php

@@ -5,6 +5,7 @@ namespace Drupal\obfuscate;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Twig\Extension\AbstractExtension;
 use Twig\TwigFilter;
+use Twig\TwigFunction;
 
 /**
  * Twig extension that wraps obfuscation methods.
@@ -48,7 +49,7 @@ class TwigExtension extends AbstractExtension {
    */
   public function getFunctions() {
     return [
-      new TwigFilter('obfuscate', $this->obfuscate(...)),
+      new TwigFunction('obfuscate', $this->obfuscate(...)),
     ];
   }
 
@@ -88,7 +89,7 @@ class TwigExtension extends AbstractExtension {
    *   The text and email obfuscated as a link.
    */
   public function obfuscate($mail, $text) {
-    return $this->obfuscateMail->getObfuscatedLink($mail, [], $text);
+    return $this->obfuscateMail->getObfuscatedLink($mail, $text, []);
   }
 
 }