[monitoring-plugins] Merge branch 'travis-ci-xenial'

[Jan Wagner]

 Module: monitoring-plugins
 Branch: master
 Commit: 49a0583bffe03617ad91c17dc7a6465a10c8ccdd
 Author: Jan Wagner <w...@cyconet.org>
   Date: Wed Feb  6 08:34:44 2019 +0100
    URL: 
https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=49a0583

Merge branch 'travis-ci-xenial'

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