blacklist.conf renamed

[Hugo Vanwoerkom <hvw59601@care2.com>]

Hi,

Running Sid. I just notices that /etc/modprobe.d/blacklist.conf is 
renamed to blacklist.conf.dpkg-bak.
The date says:

-rw-r--r-- 1 root root  658 Nov 14 06:01 blacklist.conf.dpkg-bak

On that date I only installed lsof.
Any insights?
I copied the file to blacklist.conf again.

Hugo