Fix CMake LZ4 include variable

# Finds liblz4.

#

# This module defines:

# LZ4_FOUND

# LZ4_INCLUDE_DIR

# LZ4_LIBRARY

# - Find Lz4

# Find the lz4 compression library and includes

#

# LZ4_FOUND - True if lz4 found.

# LZ4_LIBRARIES - List of libraries when using lz4.

# LZ4_INCLUDE_DIR - where to find lz4.h, etc.

find_path(LZ4_INCLUDE_DIR

    NAMES lz4.h

    ${ZLIB_LIBRARIES}

    ${BZIP2_LIBRARIES}

    ${ZSTD_LIBRARIES}

    ${LZ4_LIBRARY}

    ${LZ4_LIBRARIES}

)

if(${JeMalloc_FOUND})