joyent/node — pull request #2984 by shigeki (2012-03-22 08:44:18+00:00)
Title: tls: fix CryptoStream.setKeepAlive()

It may be left after copy & paste of setDelay() in 78db18739a740851b9800071a7fae0c734a915ce
I could not come across how to test this fix and confirm TCP keep-alive working well within node.
I checked test/simple/test-https-socket-options.js and test/simple/test-net-keepalive.js but they seemed not to be good for testing TCP keep-alive.