message: Update doc test
diff: @@ -64,9 +64,9 @@ def process_file(in_filename, out_filename, upgrader):
  def skip_magic(code_line, magic_list):
  """
  - Checks if the cell has magic, that is not python based
  + Checks if the cell has magic, that is not python-based.
  - >>> skip_magic('!ls -laF')
  + >>> skip_magic('!ls -laF', ['%', '!', '?'])
  True
  """
  @@ -79,7 +79,8 @@ def skip_magic(code_line, magic_list):
  def check_line_split(code_line):
  r"""
  - Checks if line was splitted with `\`
  + Checks if a line was splitted with `\`.
  +
  >>> skip_magic("!gcloud ml-engine models create ${MODEL} \\\n")
  True
  """
  