mbadblocks --version (return code: 0)
mbadblocks (GNU mtools) 4.0.18
configured with the following options: enable-xdf disable-vold disable-new-vold disable-debug enable-raw-term
mbadblocks -HELP (return code: 1)
mbadblocks: invalid option -- '-'
Mtools version 4.0.18, dated January 9th, 2013
Usage: mbadblocks: [-c clusterList] [-s sectorList] [-c] [-V] device