ZFS Crypto now checks for checksum errors which was caused by
odler version of zfs-crypto. Disable this by setting the optional
module parameter 'zfs_crypto_ignore_checksum_errors'.
Document the change in verifying MAC checksums and how to
mount a previously created crypted filesystem.
More details around this at https://github.com/zfsrogue/zfs-crypto/issues/34
Merge pull request #35 from FransUrbo/fixes.crypto_module_param

Add module param to ignore MAC checksum errors