Add license type: Apache2 is NOTICE license am: a2c6b6bfbe am: ee1e7b936f am: 6971ff1970

Change-Id: Ie89f6f9391490fc05ce958a6d91329d9f5180d82
diff --git a/METADATA b/METADATA
index 5d8beb8..8f09930 100644
--- a/METADATA
+++ b/METADATA
@@ -10,6 +10,7 @@
     value: "https://github.com/cbeust/jcommander.git"
   }
   version: "1.71"
+  license_type: NOTICE
   last_upgrade_date {
     year: 2020
     month: 4