Fixer osTicket email body message not show

When i create new ticket and then message alert . This body massage is blank
thank AlexeyDemidov   and pear.php.net   

How to Fix it
Open file  include/class.mailer.php
find line 170   (Version 1.9.3)

 $mime = new Mail_mime();

add new \n

 $mime = new Mail_mime("\n");