/lib/modules-load.d/zfs.conf is in zfsutils-linux 0.7.5-1ubuntu15.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | # Always load kernel modules at boot. The default behavior is to load the
# kernel modules in the zfs-import-*.service or when blkid(8) detects a pool.
#zfs
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