code: def _space_in_headerblock(relative_path, contents, linter_options):
      
      del relative_path
      del linter_options
  
      check_index = 1
  
      if len(contents) > 0:
          if _line_is_shebang(contents[0]):
              check_index = 2
  
      if len(contents) < check_index + 1:
          description = ("""Document cannot have less """
                         """than {0} lines""").format(check_index + 1)
          return LinterFailure(description, 1, replacement=None)
  
      candidate = contents[check_index]
  
      if not _match_space_at_line(candidate):
          description = """The second line must be an empty comment"""
          return LinterFailure(description, check_index + 1,
                               _comment_type_from_line(candidate)[:-1] + "\n" +
                               candidate)
docs: Check for space between the filename in a header block and description.
  
      like such:
      # /path/to/filename
      #
      # Description