/usr/bin/varnishtop: invalid option -- '-'
Usage: /usr/bin/varnishtop <options>

Options:
 [-0]                      Check configuration
 [-1]                      Run once
 [-b]                      Only display backend records
 [-c]                      Only display client records
 [-C]                      Caseless regular expressions
 [-d]                      Process old log entries
 [-E]                      Display ESI transactions
 [-f]                      First field only
 [-g <session|request|vxid|raw>] Grouping mode (default: vxid)
 [-h]                      Usage help
 [-i <taglist>]            Include tags
 [-I <[taglist:]regex>]    Include by regex
 [-L <limit>]              Incomplete transaction limit
 [-n <workdir>]            varnish working directory
 [-p <period>]             Sampling period
 [-Q <file>]               VSL query file
 [-q <query>]              VSL query
 [-r <filename>]           Binary file input
 [-t <seconds|off>]        VSM connection timeout
 [-T <seconds>]            Transaction end timeout
 [-x <taglist>]            Exclude tags
 [-X <[taglist:]regex>]    Exclude by regex
 [-V]                      Version