gpg: Use gnupg_fd_t for open_outfile.
* g10/main.h (open_outfile): Use gnupg_fd_t instead of int. * g10/openfile.c (open_outfile): Likewise. Use GNUPG_INVALID_FD. * g10/dearmor.c (dearmor_file, enarmor_file): Follow the change. * g10/encrypt.c (encrypt_simple): Likewise. * g10/export.c (do_export): Likewise. * g10/revoke.c (gen_desig_revoke, create_revocation): Likewise. * g10/sign.c (sign_file, clearsign_file, sign_symencrypt_file): Likewise.
- GnuPG-bug-id: T6580
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>