docs: def utils_doc(*args):
      '''
      .. versionadded:: Neon
  
      Return the docstrings for all utils modules. Optionally, specify a module
      or a function to narrow the selection.
  
      The strings are aggregated into a single document on the master for easy
      reading.
  
      Multiple modules/functions can be specified.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' sys.utils_doc
          salt '*' sys.utils_doc data stringutils
          salt '*' sys.utils_doc stringutils.to_unicode
          salt '*' sys.utils_doc data.encode data.decode
      '''
      docs = {}
      if not args:
          for fun in __utils__:
              docs[fun] = __utils__[fun].__doc__
          return _strip_rst(docs)
  
      for module in args:
          _use_fnmatch = False
          if '*' in module:
              target_mod = module
              _use_fnmatch = True
          elif module:
              # allow both "sys" and "sys." to match sys, without also matching
              # sysctl
              target_mod = module + '.' if not module.endswith('.') else module
          else:
              target_mod = ''
          if _use_fnmatch:
              for fun in fnmatch.filter(__utils__, target_mod):
                  docs[fun] = __utils__[fun].__doc__
          else:
  
              for fun in __utils__:
                  if fun == module or fun.startswith(target_mod):
                      docs[fun] = __utils__[fun].__doc__
      return _strip_rst(docs)