ZFS log device removal?

[Adam Stylinski]

I hope I'm not asking anything too obvious, but I just saw this commit via
the svn-src-all list:
http://lists.freebsd.org/pipermail/svn-src-all/2010-October/030466.html

And I was wondering if this perhaps means that log device removal is now
possible on 8-STABLE.  Or was this just a small code revision toward that
feature?

Also I apologize in advance if my mailer does something weird and sends this
message more than once, please be sure to tell me.