Merge "Add license_note" am: 16d42b921f am: d52fe07faf am: 0be684f96a

Original change: https://android-review.googlesource.com/c/platform/external/expat/+/2011745

Change-Id: Ib8f68783406dfbeaaa9ec0d10c29c1d9d35d1070
diff --git a/METADATA b/METADATA
index 97285a7..53ee48c 100644
--- a/METADATA
+++ b/METADATA
@@ -13,6 +13,7 @@
     value: "https://github.com/libexpat/libexpat/releases/download/R_2_4_6/expat-2.4.6.tar.bz2"
   }
   version: "R_2_4_6"
+  license_note: "contains GFDL documentation"
   license_type: BY_EXCEPTION_ONLY
   security {
     tag: "NVD-CPE2.3:cpe:/a:libexpat_project:libexpat:2.4.1"