Description of problem:
fedora-packager-setup.sh copies ~/.fedora.cert to ~/.koji/client.crt, but only
if the latter does not exist. If someone runs the script once, and later their
cert expires and then get a new one, and run the script again, they'll try (and
fail) to import the "new" cert into Firefox.

If they're anything like me, they'll try it over and over, in slightly different
ways, eventually asking for help and file a bug on NSS before they see the real
problem. :)

Version-Release number of selected component (if applicable):
koji-1.1-1.fc7.noarch

Additional info:
 8  if [ ! -f ~/.koji/client.crt ]; then
 9      if [ -f ~/.fedora.cert ]; then
10          cp ~/.fedora.cert  ~/.koji/client.crt

Why not just use a hardlink?