...as suggested in comment <https://github.com/flathub/
org.libreoffice.LibreOffice/issues/48#issuecomment-399739393> to "LibreOffice
6.0.5": "Should 'Flatpak version' be just 'Flatpak' to save translation of
'version' in the string for non-English locales?"

Change-Id: I53171a5725f54520ae9e3cbaf294e291d16e1c78
Reviewed-on: https://gerrit.libreoffice.org/56390
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>