freebsd-update prints error output to stdout instead of stderr

[Ryan Westlund]

Hello, I submitted a bug report for this including a patch about a week ago
and I don't see any new comments on the thread (
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230243). I started to
suspect that it's been disucssed in the mailing list but not on
bugs.freebsd.org and I just didn't know because I wasn't subscribed, so I'm
just now subscribing and sending this message to confirm that's not the
case.