gpg: With --auto-key-retrieve prefer WKD over keyservers.
* g10/mainproc.c (check_sig_and_print): Print a hint on how to make use of the preferred keyserver. Remove keyserver lookup just by the keyid. Try a WKD lookup before a keyserver lookup.
The use of the the keyid for lookups does not make much sense anymore
since for quite some time we do have the fingerprint as part of the
- GnuPG-bug-id: T4595
- Signed-off-by: Werner Koch <email@example.com>