fping 3.5 发布，类似于ping的程序

fping是一个类似ping的程序，它使用Internet控制消息协议（ICMP）发送请求，以确定目标主机是否响应。 fping不同于ping，它能够在命令行上指定任意数量的目标主机或指定一个包含目标主机列表的文件。Instead of sending pings to one target until it times out or replies, fping will send out a ping packet and move on to the next target in a round-robin fashion。

发布日志: This release fixes a crash which could happen with long-running fping processes. A new flag for timestamping of output has been introduced (-D).