`d.Sock()` already returns the socket-path including the `unix://` scheme. Also removed `--iptables=false`, as it didn't really seem nescessary for this test. Signed-off-by: Sebastiaan van Stijn <github@gone.nl> (cherry picked from commit 14342046477b7ed87a9c5c451bb4520c7f6cabcc) Signed-off-by: Sebastiaan van Stijn <github@gone.nl> Upstream-commit: c40a7d393bca990e07973024e71034b4b6fc05e5 Component: engine