rdiff-backup-statistics -V (return code: 1)
Bad command line: option --version not recognized
rdiff-backup-statistics (return code: 1)
Usage: /usr/bin/rdiff-backup-statistics [--begin-time <time>] [--end-time <time>] [--minimum-ratio <float>] [--null-separator] <backup-dir>
See the rdiff-backup-statistics man page for more information.