Workaround issue mentioned in keybase/keybase-issues#10

There's a bug in Node.js v0.11.x, that's addressed by
this PR: https://github.com/joyent/node/pull/7188, which
causes X509 certs that don't end in newlines to be discarded.
But until that bug is fixed, we can simply workaround but ending
ours with a newline.