content/static: update static.go
content/static: update static.go

I forgot to account for changes made in
4f47846230532e2aec39318c0e81b17fd483710c

Change-Id: If4c28726d77a7458b2697a1581e0077dffc5da1d
Reviewed-on: https://go-review.googlesource.com/c/website/+/189319
Run-TryBot: Andrew Bonventre <682ad9f487f614f19e8b7cc5d340bdc8e1c1b128@golang.org>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Andrew Bonventre <682ad9f487f614f19e8b7cc5d340bdc8e1c1b128@golang.org>

golang/website,golang/website,golang/website,golang/website,golang/website,golang/website,golang/website