gpg: Don't let gpg return failure on an invalid packet in a keyblock.
* g10/keydb.c (parse_keyblock_image): Use log_info instead of log_error for skipped packets. * g10/keyring.c (keyring_get_keyblock): Ditto.
log_info should be sufficient and makes this more robust. Some
tools (e.g. Enigmail) are too picky on return codes from gpg.
- Signed-off-by: Werner Koch <email@example.com>