Fix code style

src/Spout/Common/Helper/StringHelper.php

@@ -7,8 +7,6 @@ namespace Box\Spout\Common\Helper;
  * This class provides helper functions to work with strings and multibyte strings.
  *
  * @codeCoverageIgnore
- *
- * @package Box\Spout\Common\Helper
  */
 class StringHelper
 {
@@ -50,6 +48,7 @@ class StringHelper
     public function getCharFirstOccurrencePosition($char, $string)
     {
         $position = $this->hasMbstringSupport ? mb_strpos($string, $char) : strpos($string, $char);
+
         return ($position !== false) ? $position : -1;
     }
 
@@ -66,6 +65,7 @@ class StringHelper
     public function getCharLastOccurrencePosition($char, $string)
     {
         $position = $this->hasMbstringSupport ? mb_strrpos($string, $char) : strrpos($string, $char);
+
         return ($position !== false) ? $position : -1;
     }
 }