Fix indent error which would have prevented choice expiration to work.

Change-Id: I077e05eea23ad58d1dde2c9fe5608660a56d03e5
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/318815


Tested-by: Xin Li <delphij@google.com>
Reviewed-by: Amith Dsouza <amithds@google.com>
Reviewed-by: Raman Tenneti <rtenneti@google.com>