Getting mysqld --help as root exits with 1

I'm on Fedora and try to get verbose help as root:

sudo /usr/libexec/mysqld --help --verbose

It kinda works but the exit code is 1, which is not what I'd expect, since I wanted just help message.

How to repeat:

su -

/usr/libexec/mysqld --help --verbose

echo $?

Actual result:
1
Expected result:
0

Reported also on http://bugs.mysql.com/bug.php?id=70058

Proposed patch is attached.