Update RedirectResponse.php

Author: GrahamCampbell

src/Illuminate/Http/RedirectResponse.php

@@ -148,10 +148,10 @@ public function withErrors($provider, $key = 'default')
     /**
      * Add fragment identifier to the url.
      *
-     * @param  string $fragmentIdentifier
+     * @param  string  $fragmentIdentifier
      * @return $this
      */
-    public function withFragmentIdentifier(string $fragmentIdentifier)
+    public function withFragmentIdentifier($fragmentIdentifier)
     {
         // Remove any existing fragment identifier
         $this->withoutFragmentIdentifier();