* src/dirinfo.c (WANT_GPGTAR_NAME): New.
(dirinfo): Add field gpgtar_name.
(get_gpgconf_item): Build gpgtar_name on demand and return it.
(_gpgme_get_default_gpgtar_name) : New.
(gpgme_get_dirinfo): New value "gpgtar-name" for WHAT.
* src/util.h (_gpgme_get_default_gpgtar_name): New.
* tests/t-engine-info.c (main): Add gpgtar-name to the output.
GnuPG-bug-id: 6342