sandbox: Use dbus-run-session instead of dbus-launch when available

According to dbus upstream: "dbus-launch is fairly horrible code,
complicated by the historical need for it to support X11 autolaunching,
so the D-Bus maintainers would like to move it out of the critical path
and minimize its use."

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=836289

Signed-off-by: Laurent Bigonville <bigon@bigon.be>
1 file changed