The bug

In Minecraft version 1.8 the game used one translation string when a block or item name was invalid:

commands.give.notFound=There is no such item with name %d

However at some point this translation was replaced by two new ones (very likely in version 1.8.1):

commands.give.item.notFound=There is no such item with name %d
commands.give.block.notFound=There is no such block with name %d

Even though they were added for an official release they are untranslated for all languages other than "English (US)" and are not listed on crowdin (website used for translations) either.

How to reproduce

1. Open Minecraft 1.8.9 which should have translations for all game elements
2. Set the language to something different than English
3. Use the following command

   /setblock ~ ~ ~ s