In freeradius rlm_exec - How keep "\n" newline in messages

So in freeradius (version 3.0.19), we are using rlm_exec to call an external shell script. The script sends all responses to standard out (which gets returned back to freeradius), and that is working, but if we put the "\n" newline character in our messages, that newline is getting removed. We use "\n" to format some messages for the end user. Is there any way to create messages that keep the newline character? Thank you for your help! Ryan