Fixed filename in help text for update-data.php

Author: brandonkelly

Resources/bin/update-data.php

@@ -36,7 +36,7 @@
 
 if ($argc > 3 || 2 === $argc && '-h' === $argv[1]) {
     bailout(<<<'MESSAGE'
-Usage: php update-icu-component.php <path/to/icu/source> <path/to/icu/build>
+Usage: php update-data.php <path/to/icu/source> <path/to/icu/build>
 
 Updates the ICU data for Symfony to the latest version of ICU.