Fix bundler obsolete notation

Change-Id: I51004db76bed192337be65323075bf7e45ca02c1
diff --git a/src/com/mirantis/mk/Ruby.groovy b/src/com/mirantis/mk/Ruby.groovy
index 3c96b29..dc08ce5 100644
--- a/src/com/mirantis/mk/Ruby.groovy
+++ b/src/com/mirantis/mk/Ruby.groovy
@@ -35,7 +35,7 @@
                 gem 'inspec'
                 gem 'kitchen-salt', :git => 'https://github.com/salt-formulas/kitchen-salt.git'"""
         }
-    sh "rbenv exec bundler install --path vendor/bundle"
+    sh "rbenv exec bundle install --path vendor/bundle"
 }
 
 /**
@@ -59,9 +59,9 @@
  */
 def runKitchenCommand(cmd, environment = null){
     if(environment && environment != ""){
-        return sh(script: "${environment} rbenv exec bundler exec kitchen ${cmd}", returnStdout: true)
+        return sh(script: "${environment} rbenv exec bundle exec kitchen ${cmd}", returnStdout: true)
     }else{
-        return sh(script: "rbenv exec bundler exec kitchen ${cmd}", returnStdout: true)
+        return sh(script: "rbenv exec bundle exec kitchen ${cmd}", returnStdout: true)
     }
 }