tweaks from reviewing PR

deltas.go

@@ -123,7 +123,7 @@ func (ch *CaddyHugo) Message(deltas ...acedoc.Delta) Message {
 }
 
 func (ch *CaddyHugo) handleDeltaConn(conn DeltaConn, doc *editSession) (int, error) {
-	const idlePing = 1 * time.Second
+	const idlePing = 15 * time.Second
 	const idlePingShort = 1 * time.Millisecond
 
 	errCh := make(chan error)

doc_test.go

@@ -221,7 +221,6 @@ func TestDeltasMulti(t *testing.T) {
 
 	for i, client := range clients {
 		client.mtx.Lock()
-		t.Logf("client %d exists", i)
 		// all clients should have "written" 2 deltas out to their "browser"
 		// that came from the other clients
 		if len(client.wroteDeltas) != 2 {