Fix servername for pre-fetch dns + tls (#140)
Fix servername for pre-fetch dns + tls (#140)

Signed-off-by: Erica Windisch <b34dcff65a61fa6f44bf3335bcddbdc3b76b7e78@iopipe.com>
pselle/iopipe,iopipe/iopipe-agent-node,iopipe/iopipe