Merge a few variable declaration and initializations

internal/fuse/dir.go

@@ -125,8 +125,7 @@ func (d *dir) Attr(ctx context.Context, a *fuse.Attr) error {
 func (d *dir) calcNumberOfLinks() uint32 {
 	// a directory d has 2 hardlinks + the number
 	// of directories contained by d
-	var count uint32
-	count = 2
+	count := uint32(2)
 	for _, node := range d.items {
 		if node.Type == "dir" {
 			count++