Bug#940312: /etc/issue: /etc/issue is being updated by Debian when it doesn't need to

[Ben Wong]

Hi, I know this is low-priority and everyone is busy on important matters,
but I was wondering if anybody had looked at this yet. The fix I included
is simple and easily verified. I'm hoping that it can be included in Debian
11 (Bullseye).

Thanks,

—Ben