internal: add baidu.com to the broken auth list

Change-Id: I17fe6f8fce63c7d68975450ba106698533c392d9
Reviewed-on: https://go-review.googlesource.com/19742
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/internal/token.go b/internal/token.go
index 39caf6c..526d224 100644
--- a/internal/token.go
+++ b/internal/token.go
@@ -105,6 +105,7 @@
 	"https://oauth.sandbox.trainingpeaks.com/",
 	"https://oauth.trainingpeaks.com/",
 	"https://oauth.vk.com/",
+	"https://openapi.baidu.com/",
 	"https://slack.com/",
 	"https://test-sandbox.auth.corp.google.com",
 	"https://test.salesforce.com/",