corrected translation, thanks to Philipp Weissenbacher

Change-Id: I7b2f9c6ed95d07c2004ece64f5ff24b9a8a003d4
Reviewed-on: https://gerrit.libreoffice.org/8112
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>