RPM signing problems on Fedora 15?

[Julian C. Dunn]

I just upgraded to F15 and now I'm having problems signing my custom
RPMs. Am I losing my mind here:

demeter:~/rpm/SPECS$ rpmbuild --sign twirssi.spec
rpm: --addsign: No such file or directory

??

and

demeter:~/rpm/SPECS$ file
/home/staff/jdunn/rpm/RPMS/noarch/twirssi-2.5.0-1.fc15.noarch.rpm
/home/staff/jdunn/rpm/RPMS/noarch/twirssi-2.5.0-1.fc15.noarch.rpm: RPM
v3.0 bin i386/x86_64
demeter:~/rpm/SPECS$ rpm --addsign
/home/staff/jdunn/rpm/RPMS/noarch/twirssi-2.5.0-1.fc15.noarch.rpm
rpm: /home/staff/jdunn/rpm/RPMS/noarch/twirssi-2.5.0-1.fc15.noarch.rpm:
No such file or directory

WTF?

- Julian