Description of problem: The localization of the KDE Plasma Desktop is not complete. There are several places that show English instead of German texts. Examples: -in the "Shutdown" area of the main menu: "Lock screen" instead of "Bildschirm sperren" "End session" instead of "Abmelden" ... In the context menus in Dolphin: "Paste Clipboard Contents..." instead of "Einfügen aus Zwischenablage" "Open With" instead of "Öffnen mit" ... Version-Release number of selected component (if applicable): KDE Plasma 5 on Fedora 23 completely updated (December 20. 2015).
Fedora Project doesn't translate KDE. If the translations are correct upstream/in other distributions, then it might be a packaging problem that we can fix. If these strings are just not translated at all, then you should bring this up upstream.