what d7fc00e1 and 1af4ab72 already does
for kde5

Change-Id: I924bdc5cfd6a12ff7bdbeef36d606c03307cb99b
Reviewed-on: https://gerrit.libreoffice.org/58832
Tested-by: Jenkins
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>