Failure to build R for EL-5

["Tom \"spot\" Callaway" <tcallawa redhat com>]

DEBUG util.py:256:  Error Downloading Packages:
DEBUG util.py:256:    rpmdevtools-6.8-1.el5.noarch: failure:
rpmdevtools/6.8-1.el5/noarch/rpmdevtools-6.8-1.el5.noarch.rpm from
local: [Errno 256] No more mirrors to try.
DEBUG util.py:319:  Child returncode was: 1

I'm always willing to concede that I broke something, but it sure looks
like the EL-5 buildroot can't populate itself here.

~spot