Why does /dev/rtc0 belong to group audio in Lenny but not in Sid?

[Rick Thomas <rbthomas@cs.rutgers.edu>]

In Lenny, "ls -ld /dev/audio" gives

> lenny:~$ ls -ld /dev/rtc0
> crw-rw---- 1 root audio 254, 0 May  2 15:25 /dev/rtc0


But in Sid, it gives

> sid:~$ ls -ld /dev/rtc0
> crw-rw---- 1 root root 254, 0 May 10 23:51 /dev/rtc0

Anybody know why?

Thanks!

Rick