galfit82

dockware/essentials: Too many layers?

1

**Describe the bug** When building our own Docker image (AUFS storage driver) on top of dockware/essentials (which itself only produces 3 layers) we run into the docker error: max depth...

Pin down to compatible coding-standard dependency

2

Fixes errors occuring due to changed interfaces in recent slevomat/coding-standard ^8.0 releases.