POSIX is considering standardizing the Solaris/BSD behavior of 'tail -r'
rather than adding the GNU extension of 'tac' as a separate utility:
http://austingroupbugs.net/view.php?id=877

This bug report serves as a reminder that we need to add 'tail -r'
support to coreutils, as well as a request for reviewers for the current
state of the proposal to make sure that it is not an onerous burden for
adding that code.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org