Replace 'htmlspecialchars' by 'htmlsc'

Replace 'htmlspecialchars' by 'htmlsc'

The behavior of 'htmlspecialchars' has changed in PHP 5.4.
The default value of 3rd parameter $encoding is UTF-8.
Almost all EUC_JP characters are handled as invalid UTF-8
sequence and that cause empty output.
http://docs.php.net/manual/en/function.htmlspecialchars.php

The solution used in 'htmlsc' is setting $encoding explicitly.