def print_flag_help(self):
        if not self.flags:
            return
        
        lines = []
        for m, (cfg,help) in self.flags.items():
            lines.append('--'+m)
            lines.append(indent(dedent(help.strip())))
        # lines.append('')
        print(os.linesep.join(lines))
Print the flag part of the help.
dataset/ETHPy150Open ipython/ipython-py3k/IPython/config/application.py/Application.print_flag_help