debugfs -VERSION (return code: 0)
debugfs 1.42.13 (17-May-2015)
Using EXT2FS Library version 1.42.13
debugfs -HELP (return code: 1)
debugfs 1.42.13 (17-May-2015)
debugfs: invalid option -- '-'
debugfs: Usage: debugfs [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]