Clear /var/lib/apt/lists

[kenorb]

Consider cleaning /var/lib/apt/lists as per the following files:

  1056166  15340 -rw-r--r--   1 root     root     15707199 Apr 21  2016 /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_xenial_universe_binary-amd64_Packages.lz4
  1056167  15596 -rw-r--r--   1 root     root     15968301 Apr 21  2016 /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_xenial_universe_source_Sources.lz4