change line 72 in jat3.php

hello,
today i had an php-memory-error with line 72 in jat3.php.
can you change the line from

$buffer = preg_replace("//", $content . "\n", $buffer);

to

$buffer = str_replace('', $content . "\n", $buffer);

imho is not necessary to use preg_replace in this line.