Snippets for libisoburn 1.5.8.pl02 from Nix aarch64-linux

Sourced from https://hydra.nixos.org/log/k5vq9qdqmgwnkdppvll7f70fm0vnd0qy-libisoburn-1.5.8.pl02.drv.

• xorriso/iso_img.c:290:8: warning: taking the absolute value of unsigned type 'char' has no effect [-Wabsolute-value]
    290 |    at= abs(pvd_time[16]);
        |        ^~~