godoc/static: update static.go
godoc/static: update static.go

golang.org/cl/158137 was missing a corresponding update to static.go.

Updates golang/go#29482

Change-Id: I60e059c3f00408c0d41e5284cb3e154fc1515032
Reviewed-on: https://go-review.googlesource.com/c/160482
Reviewed-by: Katie Hockman <e321a8fd89c4908465ddaf8d5d0d62480efacb63@golang.org>

golang/tools,golang/tools,golang/tools,golang/tools,golang/tools