FWIW, I see that f2fs-tools is in fedora, but it's a bit old, at v1.2.0
while upstream is at 1.4.0.
(
http://git.kernel.org/cgit/linux/kernel/git/jaegeuk/f2fs-tools.git)
If you're agitating for movement in the kernel, might want to give the
userspace pkg maintainer ( echevemaster ) a heads up, too.
Done, the package has been updated. (would be great to count with the
support in the kernel soon.)