php8.0 버전 호환 코드 적용 및 PHP 끝 태그 삭제 일괄적용

plugin/syndi/_common.php

@@ -1,3 +1,2 @@
 <?php
-include_once('../../common.php');
-?>
+include_once('../../common.php');

plugin/syndi/ping.php

@@ -61,5 +61,4 @@ echo "<entry>\n";
     echo "<summary type=\"text\"><![CDATA[{$summary}]]></summary>\n";
     echo "<category term=\"{$bo_table}\" label=\"{$link_title}\" />\n";
 echo "</entry>\n";
-echo "</feed>";
-?>
+echo "</feed>";