def init_logstart(self):
        """Initialize logging in case it was requested at the command line.
        """
        if self.logappend:
            self.magic('logstart %s append' % self.logappend)
        elif self.logfile:
            self.magic('logstart %s' % self.logfile)
        elif self.logstart:
            self.magic('logstart')
Initialize logging in case it was requested at the command line.