Same issue here.
$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise
$dpkg -l unity 5.12-0ubuntu1.1 libreoffice-base-core 1:3.5.4-0ubuntu1
Same issue here.
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04 LTS
Release: 12.04
Codename: precise
$dpkg -l base-core 1:3.5.4-0ubuntu1
unity 5.12-0ubuntu1.1
libreoffice-