wks: Let the server take the encrytion key from the file.
* tools/gpg-wks-server.c (encrypt_stream): Change arg 'fingerprint' to 'keyfile'. (store_key_as_pending): Add arg 'r_fname' to make of the keyfile. (send_confirmation_request): Add arg 'keyfile'. (process_new_key): Pass on the name of the keyfile.
- Signed-off-by: Werner Koch <wk@gnupg.org>