Log Message:
Update go116 to 1.16.9.

This minor release includes a security fix according to the new security policy.

When invoking functions from WASM modules, built using GOARCH=wasm GOOS=js,
passing very large arguments can cause portions of the module to be overwritten
with data from the arguments.

If using wasm_exec.js to execute WASM modules, users will need to replace their
copy (as described in https://golang.org/wiki/WebAssembly#getting-started)
after rebuilding any modules.

This is issue 48797 and CVE-2021-38297. Thanks to Ben Lubar for reporting this
issue.