gpg: Print a hint for --batch mode and --delete-secret-key.
* g10/delkey.c: Include shareddefs.h. (delete_keys): Print a hint.
The option --yes has some side-effects so it is not desirable to use it
automatically. The code in master (2.3) has special treatment of
confirm messages and thus this patch is only for 2.2.
- GnuPG-bug-id: T4667
- Signed-off-by: Werner Koch <firstname.lastname@example.org>