FCP process: Require 2/3 majority for FCP #114986
Description
This issue suggests we accept the PR at rust-lang/rfcbot-rs#315, which fixes rust-lang/rfcbot-rs#293. I propose we do this via FCP of the affected teams.
The summary is that for teams of size 5, currently 3 checkboxes are enough to consider the FCP as passed; the change is to require 4 checkboxes instead. Formally, the requirement for entering the 10-day period changes from "more than half the members" to "at least two thirds of the members" (and at most two outstanding boxes, as before).