This was already happening without the trailing slash, but needs to
happen separately with it.
Fixes: b/172
Change-Id: Ic3423fd7a2eaf76a073badd80965cee953df4ce9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5121
Tested-by: BuildkiteCI
Autosubmit: grfn <grfn@gws.fyi>
Reviewed-by: tazjin <tazjin@tvl.su>