Merge
diff --git a/jdk/.hgtags b/jdk/.hgtags
index 2def11c..168710d 100644
--- a/jdk/.hgtags
+++ b/jdk/.hgtags
@@ -283,3 +283,4 @@
 3dd165facde7ffa240d77b33ff88b2d938fff017 jdk8u20-b10
 37392f2f5d598bdecb8a12c4ea129a70a0ff8bf9 jdk8u20-b11
 e323c74edabd29378819150ec000c6a0a99266ed jdk8u20-b12
+4edaec5f08c09d49cc12c4e885e1180f367360a5 jdk8u20-b13