The function ext2fs_orphan_file_block_csum_set() isn't used by
e2fsprogs, but it was embarassingly broken. Thanks to Darrick Wong
for pointing this out.
Fixes: 16534ff59444 ("e2fsck: fix big-endian support for orphan_file...") Signed-off-by: Theodore Ts'o <tytso@mit.edu>