Apply suggestions from code review

Co-authored-by: Neil Macneale IV <46170177+macneale4@users.noreply.github.com>

go/store/nbs/archive_writer_test.go

@@ -42,6 +42,7 @@ func CountFilesInDir(t *testing.T, path string) int {
 func TestArchiveStreamWriterRemove(t *testing.T) {
 	t.Run("RemoveOnFinishedWriterRemovesFile", func(t *testing.T) {
 		dir := t.TempDir()
+		// Empty Dir -> 1 for "." found by WalkDir.
 		require.Equal(t, 1, CountFilesInDir(t, dir))
 		asw, err := NewArchiveStreamWriter(dir)
 		require.NoError(t, err)

integration-tests/go-sql-server-driver/push_cleanup_test.go

@@ -72,5 +72,6 @@ func TestPushTemptfCleanup(t *testing.T) {
 		return nil
 	})
 	require.NoError(t, err)
+	// Empty Dir -> for "." found by WalkDir
 	require.Equal(t, 1, cnt)
 }