[release-branch.go1.10] godoc/static: update copyright year in static.go

This change was created with `go generate
golang.org/x/tools/godoc/static` and updates the year in the copyright
notice in the file.

Change-Id: I5916b7a6d1f1ceae84d58c392767ca97b314ebc3
Reviewed-on: https://go-review.googlesource.com/c/156077
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
(cherry picked from commit 7c850e7ac1bd556c6a810c049637a26a750e2898)
Reviewed-on: https://go-review.googlesource.com/c/156340
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/godoc/static/static.go b/godoc/static/static.go
index daff3dd..a19cbd7 100644
--- a/godoc/static/static.go
+++ b/godoc/static/static.go
@@ -1,4 +1,4 @@
-// Copyright 2018 The Go Authors. All rights reserved.
+// Copyright 2019 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.