forked from remote/oauth2
microsoft is now requiring oauth logins to sandbox accounts for bingads
https://docs.microsoft.com/en-us/bingads/guides/migration-guide?view=bingads-12
the token endpoint is login.live-int.com
https://docs.microsoft.com/en-us/bingads/guides/authentication-oauth?view=bingads-12
Change-Id: Ic0c1d8a358d549b747f59e826f02a95d0247f86a
GitHub-Last-Rev: f2a5d0a812
GitHub-Pull-Request: golang/oauth2#329
Reviewed-on: https://go-review.googlesource.com/c/139357
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>