[release-branch.go1.12] go1.12.9

Change-Id: I70dc0e2accd83d9c974b95075f9e83a82d89563d
Reviewed-on: https://go-review.googlesource.com/c/go/+/190407
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
diff --git a/VERSION b/VERSION
index a62d1ea..486d1f3 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-go1.12.8
\ No newline at end of file
+go1.12.9
\ No newline at end of file