ACK: [PATCH][SRU][BIONIC] UBUNTU: SAUCE: (noup) Update zfs to 0.7.5-1ubuntu16.6

[Thadeu Lima de Souza Cascardo]

Fix is small, is upstream, has been on cosmic and disco, and test has shown
good results.

Acked-by: Thadeu Lima de Souza Cascardo <cascardo at canonical.com>