gpg: Improve message when asking for key capabilities.
* g10/keygen.c (ask_key_flags): Improve message.
Because the curve is only selected after the capabilities are queried
we do not know whether ECDSA or EdDSA will eventually be used. When
printing the possible capabilities we now use print "ECDSA/EdDSA" for
the algorithm.
- Signed-off-by: Werner Koch <wk@gnupg.org>