Snippets for awesome 4.3 from Nix aarch64-linux

Sourced from https://hydra.nixos.org/log/sl7zq4mzd2isjyp9jk8inkan86m13wyy-awesome-4.3.drv.

• /build/source/build/keygrabber.c:71:20: warning: comparison is always true due to limited range of data type [-Wtype-limits]
     71 |     return (buf[0] >= 0 && buf[0] < 0x20) || buf[0] == 0x7f;
        |                    ^~