The other variable members should also be prefixed
but I don't have an IDE to do it easily
Change-Id: Ifce210a4de89ed4d7f05126e33555da231553283
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/124089
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>