fixing golint issues to try to figure out test flakiness

doc_test.go

@@ -14,23 +14,23 @@ import (
 )
 
 type World struct {
-	CH         CaddyHugo
+	CH         *CaddyHugo
 	BlogFolder string
 }
 
-func (w World) Clean() {
+func (w *World) Clean() {
 	if w.BlogFolder != "" {
 		os.RemoveAll(w.BlogFolder)
 	}
 }
 
-func NewWorld(t *testing.T) World {
+func NewWorld(t *testing.T) *World {
 	dir, err := ioutil.TempDir("", "caddy-hugo2-test-")
 	if err != nil {
 		t.Fatalf("error initializing test environment: %v", err)
 	}
 
-	w := World{BlogFolder: dir}
+	w := &World{BlogFolder: dir}
 
 	cmd := exec.Command("hugo", "new", "site", dir)
 	cmd.Dir = dir
@@ -39,6 +39,7 @@ func NewWorld(t *testing.T) World {
 		t.Fatalf("error initializing test site: %v\n\n%v", err, string(out))
 	}
 
+	w.CH = &CaddyHugo{}
 	w.CH.Setup(dir)
 
 	return w
@@ -232,7 +233,7 @@ func TestDeltasDouble(t *testing.T) {
 	// send the second message, via clientB
 	clientB.ReceiveJSON(w.CH.Message(acedoc.Insert(0, 0, "b")))
 
-	time.Sleep(100 * time.Millisecond)
+	time.Sleep(200 * time.Millisecond)
 
 	clientA.mtx.Lock()
 	clientB.mtx.Lock()