puppetserver_config/augeas provider rspec failures on travis

[vinzent]

rspec tests in spec/unit/puppet/provider/puppetserver_config/augeas_spec.rb are OK on my computer with Fedora 25 but fail with travis.

example:

1) Puppet::Type::Puppetserver_config::ProviderAugeas with empty file should create simple new entry
     Failure/Error: @logs.select { |log| loglevels.include? log.level and log.message !~ /'modulepath' as a setting/ }.should == []

       expected: []
            got: [Could not evaluate: Augeas didn't load /tmp/target20170118-2680-1txepk4 with Trapperkeeper.lns: ] (using ==)
       Diff:
       @@ -1,2 +1,2 @@
       -[]
       +[Could not evaluate: Augeas didn't load /tmp/target20170118-2680-1txepk4 with Trapperkeeper.lns: ]

     # ./spec/fixtures/modules/augeasproviders_core/spec/lib/augeas_spec/fixtures.rb:32:in `apply!'
     # ./spec/unit/puppet/provider/puppetserver_config/augeas_spec.rb:20:in `block (3 levels) in <top (required)>'

full output in travis: https://travis-ci.org/voxpupuli/puppet-puppetserver/jobs/193161617

maybe someone has an idea whats wrong and what to fix.