* verify.c (parse_error): Compare only the last part of the where

* verify.c (parse_error): Compare only the last part of the where
token.
(prepare_new_sig): New.
(parse_new_sig): Use prepare_new_sig when required.
(_gpgme_verify_status_handler): Handle STATUS_NEWSIG.

* engine-gpgsm.c (gpgsm_keylist_ext): Send with-validation
option.  Fixed pattern construction.
(status_handler): Add debugging output.