From d8f73862501c8d08af1a7dc5dea78f2ac635300e Mon Sep 17 00:00:00 2001
From: Bryan Boreham <bjboreham@gmail.com>
Date: Tue, 10 Mar 2020 20:12:34 +0000
Subject: [PATCH] Improve comment

---
 probe/docker/container.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/probe/docker/container.go b/probe/docker/container.go
index 3e976ba6f..6622fe0c4 100644
--- a/probe/docker/container.go
+++ b/probe/docker/container.go
@@ -108,7 +108,8 @@ func (c *container) PID() int {
 
 func (c *container) Hostname() string {
 	if c.container.Config.Domainname == "" {
-		// If hostname isn't set on a container it defaults to a random hex
+		// If hostname isn't set on a container Docker sets it to the
+		// first 12 characters of the container ID, a random hex
 		// number which we don't want to show in the UI.
 		if strings.HasPrefix(c.container.ID, c.container.Config.Hostname) {
 			return ""