def writeExtras(self):
        for s in self.extras:
            self.file.write(escape(s))
            self.file.write(' \\\n')
Write out the "extras" list. These are just passed verbatim to the
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/python/zshcomp.py/ArgumentsGenerator.writeExtras