Fix grammar in German translation
Fix grammar in German translation

Change-Id: I26ba3a4510483833126cc89d6fb8a58b4a483a73
Reviewed-by: Karsten Heimrich <81d67632fe4bf9afb88a400b41aa25e19a1d2a12@digia.com>

olear/qtifw,olear/qtifw,olear/qtifw,olear/qtifw