tag release.r57.2

R=adg
CC=golang-dev
https://golang.org/cl/4637042
diff --git a/.hgtags b/.hgtags
index 06195ae..bfd8335 100644
--- a/.hgtags
+++ b/.hgtags
@@ -67,3 +67,4 @@
 3418f22c39eb8299053ae681199ee90f8cd29c6d weekly.2011-06-02
 c81944152e973a917797679055b8fcdc70fbc802 weekly.2011-06-09
 c81944152e973a917797679055b8fcdc70fbc802 weekly
+9d7967223815ef6415ff01aa0fe6ad38cdbc7810 release.r57.2