Milo: Fix console table alignment

milo/frontend/view_console.go

 // Copyright 2017 The LUCI Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //      http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 138 matching lines @@
                                 current = s
                         }
                 }
                 if colspan != 0 {
                         result += fmt.Sprintf(`<th colspan="%d">%s</th>`, colspan, current)
                 }
                 result += "</tr>"
         }
 
         // Last row: The actual builder shortnames.
-        result += "<tr><th></th>"
+        result += "<tr><th></th><th></th>"
         for _, br := range c.BuilderRef {
                 result += fmt.Sprintf("<th>%s</th>", br.ShortName)
         }
         result += "</tr>"
         return template.HTML(result)
 }
 
 func (c consoleRenderer) BuilderLink(bs *model.BuildSummary) (*resp.Link, error) {
         _, _, builderName, err := buildsource.BuilderID(bs.BuilderID).Split()
         if err != nil {
@@ skipping 23 matching lines @@
 }
 
 // ConsoleMainHandler is a redirect handler that redirects the user to the main
 // console for a particular project.
 func ConsoleMainHandler(ctx *router.Context) {
         w, r, p := ctx.Writer, ctx.Request, ctx.Params
         proj := p.ByName("project")
         http.Redirect(w, r, fmt.Sprintf("/console/%s/main", proj), http.StatusMovedPermanently)
         return
 }