Comment 6 for bug 1085211

€ sudo apt-get install xtables-addons-common --reinstall
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 24 not upgraded.
Need to get 73.4 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://nl.archive.ubuntu.com/ubuntu/ quantal/universe xtables-addons-common amd64 1.42-2 [73.4 kB]
Fetched 73.4 kB in 0s (230 kB/s)
(Reading database ... 491877 files and directories currently installed.)
Preparing to replace xtables-addons-common 1.42-2 (using .../xtables-addons-common_1.42-2_amd64.deb) ...
Unpacking replacement xtables-addons-common ...
Processing triggers for man-db ...
Setting up xtables-addons-common (1.42-2) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place