Merge pull request #12 from LCTT/master

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Update 20140915 Linux FAQs with Answers--How to capture TCP SYN, ACK and FIN packets with tcpdump.md
Merge pull request #1652 from GOLinux/master

Translating:20140915 Linux FAQs with Answers--How to capture TCP SYN, ACK and FIN packets with tcpdump.md