openssh unix dev - Oct 2000 - ssh-keygen -l does not work for dsa keys

I am running  2.2.0p1-2  under RedHat Linux 7.

While ssh-keygen -l -f .ssh/identity.pub works fine by printing the
fingerprint and id, it does not work for dsa keys.

Running ssh-keygen -d -l -f .ssh/id_dsa.pub produces the message
".ssh/id_dsa.pub is not a valid key file".

Gene Czarcinski