[release-branch.go1.8] go1.8.5

TESTING: go1.8.5rc4

DO NOT REVIEW

Change-Id: I7c6cf169e84329a31d2d9dc4c52d5c29e80482c9
diff --git a/VERSION b/VERSION
index 16119d3..b35d54d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-go1.8.4
\ No newline at end of file
+go1.8.5rc4
\ No newline at end of file