Update documentation for RingLogger's ring buffer

Signed-off-by: Nick Neisen <nwneisen@gmail.com>
Upstream-commit: 3521d534e5c9338ae5605d1228554862e922a8a9
Component: engine

components/engine/daemon/logger/ring.go

@@ -150,7 +150,7 @@ func newRing(maxBytes int64) *messageRing {
 }
 
 // Enqueue adds a message to the buffer queue
-// If the message is too big for the buffer it drops the oldest messages to make room
+// If the message is too big for the buffer it drops the new message.
 // If there are no messages in the queue and the message is still too big, it adds the message anyway.
 func (r *messageRing) Enqueue(m *Message) error {
 	mSize := int64(len(m.Line))

components/engine/daemon/logger/ring_test.go

@@ -58,7 +58,7 @@ func TestRingCap(t *testing.T) {
 		}
 	}
 
-	// should have messages in the queue for "5" to "10"
+	// should have messages in the queue for "0" to "4"
 	for i := 0; i < 5; i++ {
 		m, err := r.Dequeue()
 		if err != nil {