From 5ac58651542503847cae9aba50a97925b1fa5847 Mon Sep 17 00:00:00 2001
From: Asim Aslam <asim@aslam.me>
Date: Wed, 23 Oct 2019 10:55:53 +0100
Subject: [PATCH] add comment

---
 tunnel/link.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tunnel/link.go b/tunnel/link.go
index d5c044b9..909ad489 100644
--- a/tunnel/link.go
+++ b/tunnel/link.go
@@ -173,7 +173,7 @@ func (l *link) Send(m *transport.Message) error {
 		// rate of send in bits per nanosecond
 		rate := float64(bits) / float64(delta.Nanoseconds())
 
-		//
+		// default the rate if its zero
 		if l.rate == 0 {
 			// rate per second
 			l.rate = rate * 1e9