mysqld_multi doesn't recognize include directive (not following includes)

Hello,
we have multi-mariadb environments and decided to split my.cnf into few smaller configs for easier management and configuration support
However, it came to my attention that mysqld_multi doesn't support includes, or in simple words - doesn't "respect" include setting in my.cnf
This seems to be a very old behavior, since mysql 5.0
http://bugs.mysql.com/bug.php?id=29327

Some patches exist but I'd like to avoid patching it, better have it that functionality out of the box

So wanted to ask if you can fix it

Thanks!
Alex