[CentOS] dovecot option PROFILE=SYSTEM

Wed Jan 6 03:40:29 UTC 2021
david <david at daku.org>

Folks

In examining the file
  /etc/dovecot/conf.d/10-ssl.conf
I see the text line:
  ssl_cipher_list = PROFILE=SYSTEM

Yet, I cannot find any documentation that explains what that causes, 
where the values are stored.  I ask because I don't see that text 
line in other installations of Dovecot 2.3 on other distros.  Can 
anyone point me to an explanation?

David