Fix bug when $indent have some string

assuming $ident = '¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨';
before:
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨<script type="text/javascript">
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨    //<!--
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨    Some script here...¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
    //-->
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨</script>

now:
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨<script type="text/javascript">
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨    //<!--
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨    Some script here...
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨    //-->
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨</script>

library/Zend/View/Helper/HeadScript.php

@@ -422,7 +422,7 @@ public function itemToString($item, $indent, $escapeStart, $escapeEnd)
             $html .= $indent . '    ' . $item->source;
 
             if ($addScriptEscape) {
-                $html .= $indent . PHP_EOL . '    ' . $escapeEnd;
+                $html .= PHP_EOL . $indent . '    ' . $escapeEnd;
             }
 
             $html .= PHP_EOL . $indent;