core: Map GPGME_STATUS_EOF to the empty string.
* src/status-table.c (_gpgme_status_to_string): Return "" for EOF. * src/engine-gpg.c (read_status): Ditto. The old code accidently used GPGME_STATUS_EOF which is the integer 0 and neiteyr NULL nor a string.
- Signed-off-by: Werner Koch <wk@gnupg.org>