Going from 2 bits to 4 encode comp_algo.
Going from 2 bits to 4 encode comp_algo.
Going from 2 bits to 4 encode comp_algo.
Going from 2 bits to 4 encode comp_algo.
Cleaning up hammer2_lz4.c
Cleaning up hammer2_lz4.c and hammer2_lz4.h.
Cleaning up hammer2_lz4.c and hammer2_lz4.h.