pass and return user emails as slices

there's no real need to use pointers here

github/users.go

@@ -126,7 +126,7 @@ func (s *UsersService) ListEmails() ([]UserEmail, error) {
 // AddEmails adds email addresses of authenticated user
 //
 // GitHub API docs: http://developer.github.com/v3/users/emails/#add-email-addresses
-func (s *UsersService) AddEmails(emails *[]UserEmail) (*[]UserEmail, error) {
+func (s *UsersService) AddEmails(emails []UserEmail) ([]UserEmail, error) {
 	u := "user/emails"
 	req, err := s.client.NewRequest("POST", u, emails)
 	if err != nil {
@@ -135,13 +135,13 @@ func (s *UsersService) AddEmails(emails *[]UserEmail) (*[]UserEmail, error) {
 
 	e := new([]UserEmail)
 	_, err = s.client.Do(req, e)
-	return e, err
+	return *e, err
 }
 
 // DeleteEmails deletes email addresses from authenticated user
 //
 // GitHub API docs: http://developer.github.com/v3/users/emails/#delete-email-addresses
-func (s *UsersService) DeleteEmails(emails *[]UserEmail) error {
+func (s *UsersService) DeleteEmails(emails []UserEmail) error {
 	u := "user/emails"
 	req, err := s.client.NewRequest("DELETE", u, emails)
 	if err != nil {

github/users_test.go

@@ -134,15 +134,15 @@ func TestUsersService_AddEmails(t *testing.T) {
 	setup()
 	defer teardown()
 
-	input := &[]UserEmail{"new@example.com"}
+	input := []UserEmail{"new@example.com"}
 
 	mux.HandleFunc("/user/emails", func(w http.ResponseWriter, r *http.Request) {
-		v := &[]UserEmail{}
+		v := new([]UserEmail)
 		json.NewDecoder(r.Body).Decode(v)
 
 		testMethod(t, r, "POST")
-		if !reflect.DeepEqual(v, input) {
-			t.Errorf("Request body = %+v, want %+v", v, input)
+		if !reflect.DeepEqual(*v, input) {
+			t.Errorf("Request body = %+v, want %+v", *v, input)
 		}
 
 		fmt.Fprint(w, `["old@example.com", "new@example.com"]`)
@@ -153,7 +153,7 @@ func TestUsersService_AddEmails(t *testing.T) {
 		t.Errorf("Users.AddEmails returned error: %v", err)
 	}
 
-	want := &[]UserEmail{"old@example.com", "new@example.com"}
+	want := []UserEmail{"old@example.com", "new@example.com"}
 	if !reflect.DeepEqual(emails, want) {
 		t.Errorf("Users.AddEmails returned %+v, want %+v", emails, want)
 	}
@@ -163,15 +163,15 @@ func TestUsersService_DeleteEmails(t *testing.T) {
 	setup()
 	defer teardown()
 
-	input := &[]UserEmail{"user@example.com"}
+	input := []UserEmail{"user@example.com"}
 
 	mux.HandleFunc("/user/emails", func(w http.ResponseWriter, r *http.Request) {
-		v := &[]UserEmail{}
+		v := new([]UserEmail)
 		json.NewDecoder(r.Body).Decode(v)
 
 		testMethod(t, r, "DELETE")
-		if !reflect.DeepEqual(v, input) {
-			t.Errorf("Request body = %+v, want %+v", v, input)
+		if !reflect.DeepEqual(*v, input) {
+			t.Errorf("Request body = %+v, want %+v", *v, input)
 		}
 	})