diff missing in plague buildroot

[Michael Schwendt <mschwendt tmp0701 nospam arcor de>]

http://buildsys.fedoraproject.org/logs/fedora-6-extras/36389-fslint-2.24-1.fc6/noarch/build.log

Checking for unpackaged file(s): /usr/lib/rpm/check-files /var/tmp/fslint-2.24-1-root-mockbuild
/usr/lib/rpm/check-files: line 25: diff: command not found


Strange. Has anybody changed the FE6 buildroot defs?
Doesn't rpm-build require diffutils anymore?

EPEL5+4 don't seem to be affected.