Created attachment 13815 [details] [review]
The proposed patch
All gnome-packagedir applications are missing the *textdomain* functions calls, plus the -DLOCALEDIR in Makefile.am
This means that, at runtime, translations are not showed, while available.
Here is a patch to fix this. The patch also fix the following additional i18n/l10n issues that I found editing the sources:
* add N_() for GOptionEntry options (translate them too) in all apps
* convert _() to N_() in pk-prefs.c -> #define (N_() is the one to use
when strings are not direclty used)
* one or two missed _() here and there.