Add tests to examine how e2fsck deals with (a) the block bitmap being
corrupt; (b) the inode bitmap being corrupt; (c) the bitmap checksums
being incorrect (but the bitmaps are fine); and (d) the group
descriptor checksum itself is incorrect.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
