code: def format_help(self, formatter):
          
          formatter.dedent()
          result = formatter.format_heading(self.title)
          formatter.indent()
          result = result + optparse.OptionContainer.format_help(self, formatter)
          return result
docs: Format an option group's help text, outdenting the title so it's
          flush with the "SCons Options" title we print at the top.