Note: help and version output are generated by a naïve script which tries a few variants of
<command> --help, <command> -h etc. to find the command's help and version info.
Sometimes it gets lucky, sometimes it doesn't; if the output below looks wrong, it probably is.
btrfs-zero-log -V (return code: 1)
No valid Btrfs found on --version
ERROR: cannot open ctree
WARNING: this utility is deprecated, please use 'btrfs rescue zero-log'
btrfs-zero-log (return code: 1)
btrfs-zero-log: too few arguments
usage: btrfs-zero-log dev