Comment 1 for bug 1291564

This is reasonable, thanks. If you use an agent, then it should report these with "ssh-add -L" and so this whould already work, right?

Would it be sufficient to just try the agent, then fall back through each of id_rsa.pub, id_dsa.pub and id_ecdsa.pub until one is found, and then use that? Or should I attempt to concatenate all three or something?