Close opened paths

Test: m nothing
Change-Id: I7fcc8e2fdbca1cd231ff1e72b02156f12078072b
diff --git a/android/bazel.go b/android/bazel.go
index 5d1507c..e3c791c 100644
--- a/android/bazel.go
+++ b/android/bazel.go
@@ -713,6 +713,7 @@
 	if err != nil {
 		return "", err
 	}
+	defer file.Close()
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
 		line := scanner.Text()