Merge pull request #3491 from oilbeater/fix-defer-in-loop

defer in loop may cause resource leak

pkg/chartutil/expand.go

@@ -63,11 +63,12 @@ func Expand(dir string, r io.Reader) error {
 		if err != nil {
 			return err
 		}
-		defer file.Close()
 		_, err = io.Copy(file, tr)
 		if err != nil {
+			file.Close()
 			return err
 		}
+		file.Close()
 	}
 	return nil
 }