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.
e2label -V (return code: 1)
e2label: Bad magic number in super-block while trying to open --version
Couldn't find valid filesystem superblock.
e2label (return code: 1)
Usage: e2label device [newlabel]