Snippets for apcupsd 3.14.14 from Nix aarch64-darwin

Sourced from https://hydra.nixos.org/log/iiwzb6jppfbfnq6w4xlbivj23w7a7w4j-apcupsd-3.14.14.drv.

• asn.cpp:491:22: warning: variable length arrays in C++ are a Clang extension [-Wvla-cxx-extension]
    491 |    unsigned int vals[cnt];
        |                      ^~~
  

• modbus.cpp:662:17: warning: variable length arrays in C++ are a Clang extension [-Wvla-cxx-extension]
    662 |    uint8_t data[len];
        |                 ^~~