Fix compatibility with PHP 5.2 in html.php file (#1489514)

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Fix compatibility with PHP 5.2 in html.php file (#1489514)
 - Remove expand/collapse with plus/minus keys (on numeric keypad) (#1489513)
 - Fix issue where filesystem path was added to all-attachments (zip) file (#1489507)
 - Fix case-sensitivity of email addresses handling on compose (#1485499)

program/lib/Roundcube/html.php

@@ -880,7 +880,7 @@ class html_table extends html
     private function _row_tagname()
     {
         static $row_tagnames = array('table' => 'tr', 'ul' => 'li', '*' => 'div');
-        return $row_tagnames[$this->tagname] ?: $row_tagnames['*'];
+        return $row_tagnames[$this->tagname] ? $row_tagnames[$this->tagname] : $row_tagnames['*'];
     }
 
     /**
@@ -889,7 +889,7 @@ class html_table extends html
     private function _col_tagname()
     {
         static $col_tagnames = array('table' => 'td', '*' => 'span');
-        return $col_tagnames[$this->tagname] ?: $col_tagnames['*'];
+        return $col_tagnames[$this->tagname] ? $col_tagnames[$this->tagname] : $col_tagnames['*'];
     }
 
 }