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.
e2undo -V (return code: 1)
e2undo: invalid option -- '-'
Usage: e2undo <transaction file> <filesystem>
e2undo --help (return code: 1)
e2undo: invalid option -- '-'
Usage: e2undo <transaction file> <filesystem>