Fix missing update of zstd.h to v1.1.4. Compilation was failing due to missing ZSTD_CONTENTSIZE_* defines.
Fix missing update of zstd.h to v1.1.4.
Compilation was failing due to missing ZSTD_CONTENTSIZE_* defines.

mcmilk/7-Zip-zstd,mcmilk/7-Zip-zstd,mcmilk/7-Zip-zstd