We can't really store reasons for why something is kept back. And if we managed to do that, we'd end up with an untranslated line in the middle of the output for every non-English locale until it's translated and apt updated (it does not use language packs).
We can't really store reasons for why something is kept back. And if we managed to do that, we'd end up with an untranslated line in the middle of the output for every non-English locale until it's translated and apt updated (it does not use language packs).