Looks like it would be easy to get rid of the diffutils dependency in grub, patch attached. More discussion at http://www.redhat.com/archives/fedora-devel-list/2008-January/msg02881.html
Created attachment 293830 [details] Get rid of /usr/bin/cmp dependency
Changing version to '9' as part of upcoming Fedora 9 GA. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Fixed in grub-0_97-37_fc11