[ Post-Rapperswil ]

Daniel changed the P/R slightly, because one paragraph number has been changed since the issue had been submitted. He also added a similar Requires element that exists in all other containers with a resize member function. He deliberately did not touch the wrong usage of "default-constructed" because that will be taken care of by LWG issue 868.

Moved to Tentatively Ready with revised wording after 5 positive votes on c++std-lib.