Bug#1116939: analysis

[Oswald Buddenhagen]

> Systemd, by default, limits pipes to stdout and stderr only, which is 
> why `tee /proc/self/fd/3' fails.
>
that claim makes no sense. the new fd is created by the previous 
command, and systemd doesn't prevent it (otherwise there would be an 
error).

what might be happening is that stdout is a journald socket, which 
cannot be opened via the .../fd/x mechanism. chatgpt claims this, so 
there is a slight chance that it might be true ...

the proper solution is to include a systemd timer unit with debsums. the 
current script's complexity is ~100% stuff that systemd has built-ins 
for.