gopls: update go.mod

Change-Id: Ie609d35bed68042c6853f37e0f645ca6fa016fed
Reviewed-on: https://go-review.googlesource.com/c/tools/+/205167
Reviewed-by: Ian Cottrell <iancottrell@google.com>

gopls/go.mod

diff --git a/gopls/go.mod b/gopls/go.mod
index ceb6a44..b571fb1 100644
--- a/gopls/go.mod
+++ b/gopls/go.mod
@@ -5,7 +5,7 @@
 require (
 	github.com/sergi/go-diff v1.0.0
 	github.com/stretchr/testify v1.4.0 // indirect
-	golang.org/x/tools v0.0.0-20191017151554-a3bc800455d5
+	golang.org/x/tools v0.0.0-20191104232314-dc038396d1f0
 	honnef.co/go/tools v0.0.1-2019.2.3
 )