code: def CheckLineLength(filename, linenumber, clean_lines, errors):
      
      line = clean_lines.raw_lines[linenumber]
      if len(line) > _lint_state.linelength:
          return errors(
                  filename,
                  linenumber,
                  'linelength',
                  'Lines should be <= %d characters long' %
                      (_lint_state.linelength))
docs: Check for lines longer than the recommended length