Werk #8980: docker_node_info: Support yet another output format

Component Checks & agents
Title docker_node_info: Support yet another output format
Date Aug 29, 2019
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.5.0p22 1.6.0b8 2.0.0i1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

The docker command line client version 19.03.1 has again changed the output format, resulting in several KeyErrors.

Users who are using the mk_docker.py plugin shipped with Checkmk version 1.6 where not affected.

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