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.
dumpe2fs -VERSION (return code: 0)
dumpe2fs 1.42.13 (17-May-2015)
Using EXT2FS Library version 1.42.13
dumpe2fs -h (return code: 1)
dumpe2fs 1.42.13 (17-May-2015)
Usage: dumpe2fs [-bfhixV] [-o superblock=<num>] [-o blocksize=<num>] device