Milo: Fix logdog links

milo/appengine/buildbot/build.go

 // Copyright 2016 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 package buildbot
 
 import (
         "encoding/json"
         "errors"
         "fmt"
@@ skipping 589 matching lines @@
                 // We have chosen to promote the aliases. Therefore, we will not include
                 // them as aliases in the modified step.
                 remainingAliases.Del(sl.label)
 
                 result := make([]*stepLog, len(aliases))
                 for i, alias := range aliases {
                         aliasStepLog := stepLog{alias.Text, alias.URL}
 
                         // Any link named "logdog" (Annotee cosmetic implementation detail) will
                         // inherit the name of the original log.
-                        if !isLog {
+                        if isLog {
                                 if aliasStepLog.label == "logdog" {
                                         aliasStepLog.label = sl.label
                                 }
                         }
 
                         result[i] = &aliasStepLog
                 }
 
                 // If we performed mapping, add the OLD -> NEW URL mapping to linkMap.
                 //
@@ skipping 38 matching lines @@
         var newAliases map[string][]*buildbotLinkAlias
         if l := remainingAliases.Len(); l > 0 {
                 newAliases = make(map[string][]*buildbotLinkAlias, l)
                 remainingAliases.Iter(func(v string) bool {
                         newAliases[v] = s.Aliases[v]
                         return true
                 })
         }
         s.Aliases = newAliases
 }