refactor(app): name the feedback label helper refLabel

The reference parser uses issueRef as a reference kind.

Signed-off-by: bircni <bircni@icloud.com>

internal/app/human_output_test.go

@@ -363,7 +363,7 @@ func TestMutationFeedback(t *testing.T) {
 			deps.Streams.OutTTY = tc.tty
 			deps.Getenv = envFunc(map[string]string{"NO_COLOR": "1"})
 			a, cmd := outputApplication(deps, tc.json)
-			ref := issueRef("alice/x", 12, "Fix\x1b[2J login")
+			ref := refLabel("alice/x", 12, "Fix\x1b[2J login")
 			a.done(cmd, "Created issue %s", ref)
 			a.warn(cmd, "Issue %s is already closed", ref)
 			require.NoError(t, a.printURL(cmd, "https://example.org/12"))
@@ -387,7 +387,7 @@ func TestBatchDoneReportsEachSuccess(t *testing.T) {
 		return listed{Number: n, Title: fmt.Sprintf("Issue %d", n)}, nil
 	}
 	label := func(n int64) string { return fmt.Sprintf("#%d", n) }
-	report := func(item listed) string { return "Closed issue " + issueRef("alice/x", item.Number, item.Title) }
+	report := func(item listed) string { return "Closed issue " + refLabel("alice/x", item.Number, item.Title) }
 	for _, tc := range []struct {
 		name, json, out, stderr string
 		tty                     bool