Package: dpkg
Version: 1.14.18
Severity: minor

Please make all and create new /var/log/dpkg.log* in 644 mode.
I see no reason for not letting users see what is going on.
The can do dpkg -l anyway, and the only files not readable by the user
in e.g., /var/lib/dpkg/ are some 0 byte lock files too.

E.g., the user wants to find what packages changed this morning, as a
clue to why he is seeing some failure.