Signed-off-by: Zak Wilcox <iwilcox@iwilcox.me.uk>
[rlb@defaultvalue.org: change original --ignore-dev to --no-check-device to match tar.
Adjust code to work with current master.
Remove tests -- will be reintroduced shortly.] Signed-off-by: Rob Browning <rlb@defaultvalue.org>