docs: def install_app(app, target='/Applications/'):
      '''
      Install an app file by moving it into the specified Applications directory
  
      Args:
          app (str): The location of the .app file
          target (str): The target in which to install the package to
                        Default is ''/Applications/''
  
      Returns:
          str: The results of the rsync command
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' macpackage.install_app /tmp/tmp.app /Applications/
      '''
  
      if target[-4:] != '.app':
          if app[-1:] == '/':
              base_app = os.path.basename(app[:-1])
          else:
              base_app = os.path.basename(app)
  
          target = os.path.join(target, base_app)
  
      if not app[-1] == '/':
          app += '/'
  
      cmd = 'rsync -a --delete "{0}" "{1}"'.format(app, target)
      return __salt__['cmd.run'](cmd)