Update lib/voxpupuli/acceptance/spec_helper_acceptance.rb

Co-authored-by: Kenyon Ralph <kenyon@kenyonralph.com>

Author: bastelfreak

lib/voxpupuli/acceptance/spec_helper_acceptance.rb

@@ -21,7 +21,7 @@ def configure_beaker(modules: :metadata, &block)
   unless ENV['BEAKER_PROVISION'] == 'no'
     block_on hosts, run_in_parallel: true do |host|
       if collection == 'staging'
-        raise Exception "staging server '#{staging_url}' configured, but no BEAKER_STAGING_VERSION environment variable set" unless staging_version
+        raise Exception, "staging server '#{staging_url}' configured, but no BEAKER_STAGING_VERSION environment variable set" unless staging_version
 
         BeakerPuppetHelpers::InstallUtils.install_openvox_agent_from_url_on(host, staging_url, staging_version)
       elsif collection != 'preinstalled'