Otherwise viewing a table of review requests looks like a human has
already given a +1.

Change-Id: I670fb681ed52cce6ca252b581b94c48bbfc5d811
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>