Load a plugin.
  
    $ antigen-bundle $PLUGIN_DIR
    Cloning into '*'... (glob)
    done.
  
  Check the listing.
  
    $ antigen-list
    */test-plugin / plugin (glob)
  
  Clear out the bundles record.
  
    $ _ANTIGEN_BUNDLE_RECORD=""
  
  Check the listing, after clearing the record.
  
    $ antigen-list
    You don't have any bundles.
    [1]
  
  Confirm the plugin directory exists.
  
    $ ls dot-antigen/repos | wc -l
    1
  
  Do the cleanup.
  
    $ antigen-cleanup --force
    You have clones for the following repos, but are not used.
      */test-plugin (glob)
    
    
    Deleting clone for */test-plugin... done. (glob)
  
  Check the listing, after cleanup.
  
    $ antigen-list
    You don't have any bundles.
    [1]
  
  Confirm the plugin directory does not exist after cleanup.
  
    $ ls dot-antigen/repos | wc -l
    0