intel_reg: unrecognized option '--version'

Intel graphics register multitool Usage: intel_reg [OPTION ...] COMMAND COMMAND is one of: read [--count=N] REGISTER [...] read and decode specified register(s) write [--post] REGISTER VALUE [REGISTER VALUE ...] write value(s) to specified register(s) dump dump all known registers decode REGISTER VALUE [REGISTER VALUE ...] decode value(s) for specified register(s) snapshot create a snapshot of the MMIO bar to stdout list list all known register names help show this help REGISTER is defined as: [(PORTNAME|PORTNUM|MMIO-OFFSET):](REGNAME|REGADDR) PORTNAME is one of: mmio, portio-vga, mmio-vga, bunit, punit, nc, dpio, gpio-nc, gpio_nc, cck, ccu, dpio2, flisdsi OPTIONS common to most COMMANDS: --spec=PATH Read register spec from directory or file --mmio=FILE Use an MMIO snapshot --devid=DEVID Specify PCI device ID for --mmio=FILE --all Decode registers for all known platforms --binary Binary dump registers --verbose Increase verbosity --quiet Reduce verbosity Environment variables: INTEL_REG_SPEC Read register spec from directory or file