Log Message:
cmake: updated to 3.16.4

CMake 3.16.4
* ASM_MASM: Populate MSVC runtime library abstraction table
* VS: Tell VS 16.4 not to verify SYMBOLIC custom command inputs
* AIX: Restore pre-3.16 undocumented method to suppress exports with XL
* Android: Fix binutils selection with NDK r19+ unified toolchain
* VS: Do not use native unity builds on VS 2017 versions less than 15.8
* file(GET_RUNTIME_DEPENDENCIES): Tolerate empty list arguments
* Help: Add more variable documentation to FindMPI
* CPack: Fix regression in Deb description