The values for variable in string "installed %s script" aren't translatable

As reported in bug 1019172, the given dpkg error message is only partly translated. The string "installed %s script" is translatable, yet the actual values for %s are both not translatable and unknown for translators without any comments.

https://translations.launchpad.net/ubuntu/quantal/+source/dpkg/+pots/dpkg/fi/232/+translate
https://translations.launchpad.net/ubuntu/quantal/+source/dpkg/+pots/dpkg/fi/724/+translate

This results in error messages such as "aliprosessi installed post-installation script palautti virhetilakoodin 255"

Furthermore, even if the values were translatable, the actual error message might be quite tricky for translators (in some languages) as it combines many strings and variables. I'd like to see more simplified error messages but I guess that's beyond the scope of this bug report.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: dpkg 1.16.1.2ubuntu7
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
Date: Fri Aug 17 14:28:22 2012
InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120120)
ProcEnviron:
 LANGUAGE=
 TERM=xterm
 LANG=fi_FI.UTF-8
 SHELL=/bin/bash
SourcePackage: dpkg
UpgradeStatus: No upgrade log present (probably fresh install)