go.tools/dashboard/app: fix column order for -temp builders
go.tools/dashboard/app: fix column order for -temp builders

LGTM=bradfitz
R=bradfitz
CC=golang-codereviews
https://codereview.appspot.com/138760044

karmakaze/go.tools,karmakaze/go.tools,karmakaze/go.tools,karmakaze/go.tools,karmakaze/go.tools