Text files should end with a newline character.

Mage/Yaml/Exception/DumpException.php

@@ -22,4 +22,4 @@ use Mage\Yaml\Exception\RuntimeException;
  */
 class DumpException extends RuntimeException
 {
-}
+}

Mage/Yaml/Exception/ExceptionInterface.php

@@ -20,4 +20,4 @@ namespace Mage\Yaml\Exception;
  */
 interface ExceptionInterface
 {
-}
+}

Mage/Yaml/Exception/ParseException.php

@@ -147,4 +147,4 @@ class ParseException extends RuntimeException
             $this->message .= '.';
         }
     }
-}
+}

Mage/Yaml/Exception/RuntimeException.php

@@ -22,4 +22,4 @@ use Mage\Yaml\Exception\ExceptionInterface;
  */
 class RuntimeException extends \RuntimeException implements ExceptionInterface
 {
-}
+}