Snippets for zlog 1.2.18 from Nix aarch64-darwin

Sourced from https://hydra.nixos.org/log/8wwlrn19l6fniikdg53j2889ncszldnr-zlog-1.2.18.drv.

• /nix/var/nix/builds/nix-64334-2445542083/source/src/event.c:101:65: warning: cast to smaller integer type 'unsigned int' from 'pthread_t' (aka 'struct _opaque_pthread_t *') [-Wpointer-to-int-cast]
    101 |         a_event->tid_hex_str_len = sprintf(a_event->tid_hex_str, "%x", (unsigned int)a_event->tid);
        |                                                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~