Export public and secret keys to the same file

[Krishnan Menon (IND)]

Hi all,

I was happy to find I could export multiple keys to the same file but I
can't seem to figure out a clean way to export public and secret keys to the
same file. When I use --export, I get only the public keys for the ids I
specify. Is there a single command (as opposed to --export and
--export-secret-keys) to export key pairs to a file or is there some way I
can have it add to an existing file instead of overwriting? Or is there some
way I can merge two files containing exported keys?

Thanks in advance.

Krish