upstream: second try, deals properly with missing and private-only

Use consistent format in debug log for keys readied, offered and
received during public key authentication.

This makes it a little easier to see what is going on, as each message
now contains (where available) the key filename, its type and fingerprint,
and whether the key is hosted in an agent or a token.

OpenBSD-Commit-ID: f1c6a8e9cfc4e108c359db77f24f9a40e1e25ea7

0 files changed, 0 insertions, 0 deletions