kbx: Avoid faulty fclose in an error case.
* kbx/keybox-update.c (blob_filecopy): Do not close an uninitialized file pointer after a failure to create a temp file. * kbx/keybox-openpgp.c (next_packet): Remove duplicate assignment of PKTLEN.
- Signed-off-by: Werner Koch <wk@gnupg.org>