set_flag (WebAgent::Cookie)

    # File lib/httpclient/cookie.rb, line 115
        def set_flag(flag)
          flag = flag.to_i
          @use = true      if flag & USE > 0
          @secure = true   if flag & SECURE > 0
          @domain_orig = true if flag & DOMAIN > 0
          @path_orig = true if flag & PATH > 0
          @discard  = true if flag & DISCARD > 0
          @override = true if flag & OVERRIDE > 0
        end