gpg: Format the value of type gnupg_fd_t by casting to int.
* g10/openfile.c (open_outfile): Cast to int. * g10/encrypt.c (encrypt_crypt): Ditto. * g10/decrypt.c (decrypt_message_fd): Ditto.
- GnuPG-bug-id: T6580
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>