SYSDB: Suppress warning from clang static analyser
scan-build wrongly assumes that output variable
"version" is not initialized if function sysdb_cache_connect
returns ERR_SYSDB_VERSION_TOO_OLD or ERR_SYSDB_VERSION_TOO_NEW
The reality is that output variable "version" is initialized
especially for these two case. Initialisation to NULL suppresses
these false positive reports.
Reviewed-by: Fabiano FidĂȘncio <fidencio@redhat.com>