[release-branch.go1.15] go1.15rc2

Change-Id: I2fe55c3f0328291b7d602cfae83d3f0b72cee14c
Reviewed-on: https://go-review.googlesource.com/c/go/+/247238
Run-TryBot: Alexander Rakoczy <alex@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

VERSION

diff --git a/VERSION b/VERSION
index 7d5ba4c..e62f153 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-go1.15rc1
\ No newline at end of file
+go1.15rc2
\ No newline at end of file