use 2.4.1 ruby for puppet 4.X

.travis.yml

@@ -5,9 +5,9 @@ script: "bundle exec rake validate && bundle exec rake lint && STRICT_VARIABLES=
 matrix:
   fast_finish: true
   include:
-  - rvm: 2.1.9
+  - rvm: 2.4.1
     env: PUPPET_GEM_VERSION="~> 4.6"
-  - rvm: 2.1.9
+  - rvm: 2.4.1
     env: PUPPET_GEM_VERSION="~> 4.10"
   - rvm: 2.4.1
     env: PUPPET_GEM_VERSION="~> 5.0"

Vagrantfile

@@ -7,7 +7,7 @@ nodes = [
   { :hostname => 'ubuntu1404',   :ip => '192.168.72.7',  :box => 'puppetlabs/ubuntu-14.04-64-puppet' },
   { :hostname => 'ubuntu1204',   :ip => '192.168.72.8',  :box => 'puppetlabs/ubuntu-12.04-64-puppet' },
   { :hostname => 'debian78pe',   :ip => '192.168.72.9',  :box => 'puppetlabs/debian-7.8-64-puppet-enterprise' },
-  { :hostname => 'debian78',     :ip => '192.168.72.10',  :box => 'puppetlabs/debian-7.8-64-puppet' },
+  { :hostname => 'debian78',     :ip => '192.168.72.10', :box => 'puppetlabs/debian-7.8-64-puppet' },
   { :hostname => 'debian6010',   :ip => '192.168.72.11', :box => 'puppetlabs/debian-6.0.10-64-puppet' },
 ]
 

manifests/init.pp

@@ -509,7 +509,7 @@
   }
 
   # If a hash of rules is supplied with class then call auditd::rules defined type to apply them
-  $rules.each |$key,$opts| { 
+  $rules.each |$key,$opts| {
     auditd::rule { $key:
       * => pick($opts,{}),
     }