run with kdesu. This fixes the problem which made most kde applications
(like dolphin or kate) not usable when run as another user with kdesu.
kdesu worked to run those applications as root, but then, sockets
were created in / . This patch also fixes the creation of those files
which will be created on /tmp/runtime-<username>/ (boo#1009510).
OBS-URL: https://build.opensuse.org/package/show/KDE:Frameworks5/kdesu?expand=0&rev=106
