Converted existing method that provides application name and version in two functions

Change-Id: I93b70da7c78ee5db3d6eb710a2a2a9f4b7b4fb86
Reviewed-on: https://gerrit.libreoffice.org/15151Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>