minor fix

Signed-off-by: Xiaoxuan Wang <[email protected]>

content/oci/deletableoci.go

@@ -58,7 +58,7 @@ type DeletableStore struct {
 	graph       *graph.Memory
 }
 
-// NewDeletableStore returns a new DeletableStore.
+// NewDeletableStore returns a new DeletableStore with context.Background().
 func NewDeletableStore(root string) (*DeletableStore, error) {
 	return NewDeletableStoreWithContext(context.Background(), root)
 }